I personally don't buy any of the "Newer" balls.
I averaged 215 bowling one night a week this past season. Recently bowled an 846 series using a 2nd drill, Avalanche Solid. In my bag currently is a 2nd drill Blue Vibe (surface taken down a bit), that Avalanche Solid, a Cobalt Vibe, and a blue/silver Avalanche Pearl.
In my basement waiting to be drilled are NIB green/black Avalanche Pearl, another Avalanche Solid, a Fury Pearl, and 2 Ultimate Infernos. I do possess a NIB Ringer and a plugged Meanstreak Brawler (has like 1 game on it) that I only bought because of excellent prices on EBay.
I love the older stuff! If anyone is interested and throws 16#, I can point you to a guy that has more NIB of the older Brunswick stuff that I listed above for just $40-50 plus shipping. Inbox me.