I, unfortunately, am a huge collector of Polybags. Can't explain exactly why, but I love em! I have over 150 unique Polybags from all themes. I typically don't even open and build them either, unless I get multiple copies of for cheap. I do sell the bulk though, and typically do pretty well (i.e. Zombie Car, Ghost & Clock, Thor, Bat-Ski, Christmas Train etc).
Now, I have every Super Heroes Polybag EXCEPT for the RedBird Cycle. I almost bit on the first few I saw appear on eBay a while ago for $10-15, but figured they'd be flooding the market and I'd be able to get them at the usual $5ish range. Dumb mistake.
Now, don't get me wrong, I certainly won't pay $60, or even $30 to get this polybag, even though I definitely "need" it for my collection. So, all that being said, I have no idea why or what type of person is paying so much for them??? The collector in me is obviously a bit bummed, but the investor thinks that's just dandy (even though I don't have any, but for the sake of the market in general, nah mean?)
-PB