Neat question. I'd buy the rest of the [expletive deleted] Barbary Coast rose roulettes that keep unexpectedly popping up just when I thought I was done trying to finish this gosh darned collection. I'm guessing that $200 would just about do it.
(I still can't bring myself to read the "you're not quite finished" posts that haunted my dreams last night after I saw them in my email box.)