Creative Photo Display from a surprising source

I'm a huge fan of the extensive gallery wall for family photos (among other things).  I know, big surprise.  I did it here and here and here and here.  And here.  I have my methods, but it is interesting to see the kits popping up around the big box shops.

Well, Urban Outfitters is getting in on the action.  They offer this gallery wall collection of 10 frames for just $39. (Also comes in gold(!) or white.)

But they also offer a ton of other options.  These are pretty casual for me, but super fun, very inexpensive, and feel like they fit right in to that sort of "undecorated" vibe that's big these days.

Picture Window, 2 for $25

Cable Photo Holder, $8 or 2 for $10

Mobile Spider Frame, sale $10 (regular $12)

Picture Window Wide, $15 or 2 for $25

Fun, right?  Where would you use one of these?  would you group the photos by theme?