The technology is definitely taking leaps and bounds for all bows (but compounds & xbows especially) so that could be a slippery slope, I guess only time will tell.
Time has already told us--look at a compound from 10-15 years ago, and look at one today. As far as that goes, look at a crossbow from 10-15 years ago compared to the one Matt talked about at the beginning of this thread. As far as the crossbows go, these advances have been made even with the tiny fraction of the market they carry.