Thanks guys!! It's what I suspected. The 88 is never around and a definite cautious purchase for the reasons mentioned. I guess it's the first generation and N7B/F7B that are the only Sony V-Fets.
I'm looking for a good solid state amp north of 60 watts for my Yamaha NS-1000M. The Yamaha B2's that people are selling are for high prices and half of them are in spotty condition. I need a good amp that is a just a nudge on the warm side of neutral that has good transients and deep soundstage. I would build a First Watt but they are lower powered, except for the F5T (which is a big investment).