Yeah, I was thinking "Cantina" after reading Jesse's trench idea, too. I love it, but it hinges on a NEW figure rather than a reissue or retool like the Cantina packs. Had they come with NEW figures, EVERYONE would have bought them. Clearly low-price leader (IE - cheapo) Wal-Mart needed to hit a high profit margin and is instead cluttering the pegs with year-old product.
Smoooth. 
Modular playsets would be awesome, from the
Hoth Trench and the
Cantina Bar to the
Jedi Council Chamber and
Coruscant Senate Room. If Hasbro REALLY wants to impress us, they could offer a
modular Millenium Falcon like Jesse and I have been kicking around for years, heck even with reissued figures. Or a
modular Death Star. We've already got most of the
Trash Compactor, right? Let's build the rest, $15 at a time!
Come on, Hasbro. Use our imagination.
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CHEWIE:
I want my two dollars.