Interesting - I never KNEW about the auction aggregator tool ... but, sad that it was in play; and now isn't. Although, this comment:
Two, it's total BS that this functionality isn't built into BGG's site. Screw the damn game pages redesign, why can't people look for games that are for sale? Increased sales which means more money for BGG.
pretty much sums up my thoughts. I'll take a peek at JeffyJeff's tool (I haven't used the OWL tool in a few years, honestly ...)