according to this article about Star Wars Weekends...
http://www.studioscentral.com/column/studios-weekly/looking-back-star-wars-weekends-2010
"The other big change this year was the merchandise and overall, I don't think things were as warmly received by guests. The last few years saw merchandise being sold primarily in Soundstage One, a large vacant building between the Backlot Tour and Toy Story Midway Mania. Well, turns out that the building was being used by Imagineers this year so Disney needed a new spot for merchandise and split it between the AFI Showcase shop and the Prop Shop."
http://www.studioscentral.com/column/studios-weekly/looking-back-star-wars-weekends-2010
"The other big change this year was the merchandise and overall, I don't think things were as warmly received by guests. The last few years saw merchandise being sold primarily in Soundstage One, a large vacant building between the Backlot Tour and Toy Story Midway Mania. Well, turns out that the building was being used by Imagineers this year so Disney needed a new spot for merchandise and split it between the AFI Showcase shop and the Prop Shop."