I came across these on the [email protected]
website several weeks ago and was also perplexed. . . Apparently they're part of a line of "architecture" models (apparently 3rd and 4th in the lineup, so it must be pretty new).
The $20 price point does seem extreme given that they are 57 and 77 pieces, but they are fairly tall and the descriptions explain that they come with a sort of commemorative booklet with fun facts and probably an abbreviated history of each building. These are being served up more as a collector's item, the sort of thing that would look attractive on your desk at work or something. I dunno, I thought they were kinda cool and contemplated getting one myself. . .