I feel like, yes, it will hurt the prices on old pins - old ratty pins. I feel like the timing of that IM vault announcement might of cost me a couple hundred bucks on a game I was selling recently.
HUO stuff....not too much.
You can wait...and wait...hoping you'll get a NIB game for $4500-$5000.
Or you can buy a mint HUO game right now, maybe for a little less even.
Seems like a no-brainer to me but I'm sure many people lust after opening the box on one of these things.