Not sure how Intel B580 scalping is even feasible

I was curious how many were available on ebay, and sure enough there's plenty to buy from there.

But the entire value proposition of the B580 is that it's an affordable GPU with great 1080p performance. If a scalper jacks up the price to $400, it completely defeats the fundamental proposition of why it's attractive. So then... who is buying this at scalper prices? Make it make sense.