Ah, I'm sorry, I was a bit unclear on what I meant: I wouldn't put current legs (with the visual aspects) on the store, only something that implements the stat-swapping part of them. Visually distinct and flashy gear pieces would still require that hard work put towards them.
And thus I wouldn't say there would be a ceiling for material prices, as there would still be demand on them. Of course demand might be lower than now, as some people would be happy with just the stat swapping part. Or maybe not; I don't have the data to make any real predictions on that.