Big CSNY fan & Neil Young fan. I've seen just about every possible variation of CSNY, including solo concerts by each, in the past thirty years. They are an excellent concert band, but I passed on this tour and the last one-I refuse to mortgage my house for a concert ticket. Frankly, and speaking as a true fan, all of these guys (with the exception of David Crosby & possibly Neil Young) are past their prime. But frankly, all are such superlative talents that I'm sure they still put on a pretty good show.
BTW, if you have a chance to catch David Crosby these days, solo or in CPR (a band with his son), definately do so. Crosby, despite all of his problems in the past (Texas prison, rehab, liver transplant, grossly overweight, etc.), is now in stronger voice than he ever was-he's simply awesome.