Gun's on the scale of the Yost's put up very recently are exceptions. It is a good sign that they sell so fast and shows that the market isn't dead.
It's the shocking amount of fine semi-customs and customs that sit much longer than they did 6-12 months ago and don't sell without price drops and time. That is definitely a trend I've seen and it has happened to so many things that fall under the category of "discretionary spending".
I think it is and will be a very good time to "buy low", but I think that Yost, Burton, Rogers, etc. will be exempted from that and it will be even a worse sign when those don't move or require price drops. That's just my point of view and opinion, but I think that if you want to buy a nice used NHC, etc. you stand to save hundreds of dollars compared to a year ago.