Well I'll disagree a little bit. I think the new lower price has more to do with the shear number of guns being sold and flooding the market, than it does with restoration. True, some of those guns had varying degrees of restoration, but probably the vast majority of 'fine' Kentucky's have had something done to them, including those in the oldest, biggest and best collections.
If you want to collect only unrestored guns, your collection is going to be mighty small, or filled with 1850's clunks.
Also, pre-2008, these guns shot up in value right along with housing, vintage cars and art, and all dropped in value with the economic crunch. Since the economy has started to pick up a bit, cars and art have taken off again, big time! The guns, probably due to the much smaller buyer base, hasn't recovered, and probably won't to the previous high levels. Then toss in that the average Kentucky Rifle collector probably has at least some grey hair and the young guys are a distinct minority, it bods well for the young guys getting great deals on some of the great guns down the road.
John