Iradium is a pretty sought after wash. I don't really know why since they aren't that special looking in my opinion but I guess people like the bright colors on the pockets. Since they're pretty sought after I could see someone paying $150 for them possibly but the short inseam and the fact that the seller's feedback is -1 may drive away potential bidders.
As a side note, the -1 is the result of an AF member from Canada bidding on the jeans knowing that the seller wouldn't ship to Canada. Unless something else transpired afterwards but he posted on AF hoping that the seller would ship the jeans anyway and it looks like he wouldn't.