Even in terms of play value it mostly seems to be a trade-off — 60104 loses the vending machine, cafe, baggage x-ray scanner, and a few seats on the plane but gains a baggage conveyor, a restroom, a refueling tank for the plane, an additional minifigure, and more seats in the waiting area. It's pretty nice to see the value of a LEGO air terminal remain fairly stable even though the price has not increased.
LDStructure, developed by Michael Heidemann, is a tool for analyzing ldraw parts library. With LDStructure you will get a tool that tells you which parts are required to show the current part and where the current part is used in. You will get this information within a second or even quicker. So this tool is a "needs to have" if you are working on parts for the ldraw part library.
The upper and lower wings are connected by a dark bluish grey 4 x 1 x 3 tail on either side; this tail element is unique to the set in this colour, although has previously appeared in a couple of sets back in 2003 in old dark grey. The upper wing is also supported by a couple of 1 x 2 x 2 black windows placed back to back in front of the cockpit, which from the perspective of the pilot really can’t be good for visibility. The biplane has a three blade propeller and the tips of the blades are stickered prior to sliding the propeller on to a 6L axle protruding from the front of the fuselage where it’s held in place by an orange 2 x 2 brick with domed top. The last step is to attach a 1 x 4 x 2 bar to the top of the upper wing for the Wing Walker to hold on to and then we’re done with the biplane.
Bag 4 finishes the fuselage and all that is left are the engines and tail section. You'll notice that this aircraft has a bathroom on board as well as some storage for a non-existent flight attendant. I think this is the first time that LEGO has put some additional details into aircraft besides just seats. Also there is only one pilot for a 2 seat cockpit in the set.
There are several robotics competitions which use the Lego robotics sets. The earliest is Botball, a national U.S. middle- and high-school competition stemming from the MIT 6.270 Lego robotics tournament. Other Lego robotics competitions include Junior FIRST LEGO League (Jr.FLL) for students ages 6–9 and FIRST Lego League (FLL) for students ages 9–16 (age 9–14 in the United States, Canada, and Mexico). Jr.FLL and FLL offer real-world engineering challenges to participants. FLL uses Lego-based robots to complete tasks. Jr.FLL participants build models out of Lego elements. In its 2010 season, there were 16,070 FLL teams in over 55 countries. In its 2010 season, there were 2,147 Jr.FLL teams with 12,882 total student participants in the United States and Canada. The international RoboCup Junior football competition involves extensive use of Lego Mindstorms equipment which is often pushed to its extreme limits.
Lego (Danish: [ˈleːɡo]; stylised as LEGO) is a line of plastic construction toys that are manufactured by The Lego Group, a privately held company based in Billund, Denmark. The company's flagship product, Lego, consists of colourful interlocking plastic bricks accompanying an array of gears, figurines called minifigures, and various other parts. Lego pieces can be assembled and connected in many ways to construct objects including vehicles, buildings, and working robots. Anything constructed can then be taken apart again, and the pieces used to make other objects.
Bag 3 starts the aircraft and includes 3 minifigures (2 passengers and a pilot) The aircraft has the standard wings and fuselage sections. I am not a fan of the giant wing piece as it limits the number of seats. It does however help to make the aircraft more realistic. Given the size of the aircraft, there are only 5 seats for passengers which is rather disappointing.
Lego Games launched in 2009, was a series of Lego-themed board games designed by Cephas Howard and Reiner Knizia in which the players usually build the playing board out of Lego bricks and then play with Lego-style players. Examples of the games include "Minotaurus", in which players roll dice to move characters within a brick-build labyrinth, "Creationary", in which players must build something which appears on a card, or "Ramses Pyramid", in which players collect gems and climb up a customisable pyramid. Like many board games, the games use dice. In Lego Games, the dice are Lego, with Lego squares with symbols on Lego studs on the dice, surrounded by rubber. The games vary from simple to complex, some are similar to "traditional" board games, while others are completely different.
Other than the planes, I do find it unfortunate that the Friends set focuses on shopping and food like so many Friends sets, and I also think it is unfortunate that the City terminal only has the basics of the airport structure in the control tower and service truck. Having a control tower for the Friends set would have been great. Having a gift shop/cafe for the City terminal would have been a worthwhile addition and not something we have seen in many City sets.