It is kind of a neat display and idea, but if it is the SDCC exclusive, you're right, that thing can't be cheap to ship (or maybe put online at all). May be a bit big for an exclusive, I can't imagine lugging too many of those around even if you could go to the show.
I've sort of been trying to keep up a carded collection of TVC (only the OT figures) and would like it just from the standpoint of having something like Slave Leia, TIE Pilot, or B-Wing Pilot on a vintage card. I sort of wish they would use figures like those (as well as Luke/Han Stormtrooper and others we've mentioned before) when they need a repack to fill out a wave or keep the costs down. I think many of those would sell pretty well like that, and it is something I'd like to see. I won't be going to SDCC, and I can't imagine the price of this anyways, so I'll likely be passing, but it is a neat idea. A smaller box-set style of something like 5 or 6 figures may have been more practical though if they wanted to go with something with multiple figures.