It's a shame you couldn't catch them on clearance. I saw them briefly for $10 at Wal-mart (after I'd bought them), and that's not real common here.
I really like the Cantina Band set. It does play a short but surprisingly nice sounding clip of the first Cantina Band song (and lights a blue LED); and all 4 of the band members are given their correct instruments, making a total of 5 unique members when you add in your Figrin D'an. As standalones, I like this squat little group even better than their 3.75" counterparts. Even the rehashed Hammerhead and Duros are both kinda interesting repaints. I consider the Duros the most interesting of all the Cantina repaints, since he(she?) at least completes a Baniss Keeg/Ellors Madak pair (as seen on screen, more or less).
Cantina Encounter was much more lame, and keeps getting lamer. The dirty Sandtroopers are already less compelling with the Dewback set coming later this year. Dirty R2, silver-leg C3PO, and Blue Snaggletooth are all interesting in their own ways - but this is mostly a tough decision for a really cool Wuher.