Unlike the City set, there is no control tower or truck that services the plane. Instead, there is a passenger check-in/baggage carousel, a rolling staircase to gain access to the plane, plus the airport entrance that includes a gift shop and a café (or, one could argue, something that is very much like many other Friends sets out there). There are only three mini-dolls in this set compared to the six in the City set.
Since 1963, Lego pieces have been manufactured from a strong, resilient plastic known as acrylonitrile butadiene styrene (ABS). As of September 2008, Lego engineers use the NX CAD/CAM/CAE PLM software suite to model the elements. The software allows the parts to be optimised by way of mould flow and stress analysis. Prototype moulds are sometimes built before the design is committed to mass production. The ABS plastic is heated to 232 °C (450 °F) until it reaches a dough-like consistency. It is then injected into the moulds at pressures between 25 and 150 tonnes, and takes approximately 15 seconds to cool. The moulds are permitted a tolerance of up to twenty micrometres, to ensure the bricks remain connected. Human inspectors check the output of the moulds, to eliminate significant variations in colour or thickness. According to the Lego Group, about eighteen bricks out of every million fail to meet the standard required. Lego factories recycle all but about 1 percent of their plastic waste from the manufacturing process. If the plastic cannot be re-used in Lego bricks, it is processed and sold on to industries that can make use of it. Lego has a self-imposed 2030 deadline to find a more eco-friendly alternative to the ABS plastic it currently uses in its bricks.
Will agree with some other reviewers that some parts will fall off with normal-rough play. However, the attention to detail is pretty cool and almost makes up for it. The top is hard to take off and put on to move the minifigs. There is a TSA checkpoint, a conveyor belt for luggage, a rather impressive runway vehicle. Couple this with the cargo plane or another airplane set and some atraight road nameplates, you got an airport without spending a fortune.
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.
LEGO City enables us all to remember why we fell in love with LEGO to begin with, to remember how we all first became exposed to LEGO; as a little kid, building our first house or giving our minifigures a hospital or a police station to work in. My first set was a garage, quickly followed by a police station. Having recently found these in storage, and keen to rebuild them, having the opportunity to build something not revolving around a Jedi or an Avenger is one I keen to take advantage of.
SAS is a member of Star Alliance, meaning that many of their flights are code-shared or can be interlined with local Star Alliance partners. Therefore, you can take advantage of a one-ticket flight to, from, or via Copenhagen even if your origin or destination is not directly served by SAS. Norwegian is not a member of any alliance, but they offer connecting flights from Copenhagen to their European destinations on one ticket with an intercontinental flight.