For Sony yes, definitely. They stand to profit a lot more through royalties and such of Bluray than they ever would had they followed the successful plan of the PS2.
However, if they lose both, then ouch.
I would basically continue a massive loss on PS3 throughout its life to ensure Bluray wins. Reap the massive rewards of the royalties of Bluray. Then bring out a much more cost effective PS4. In 10 years all departments would be happy and Sony would by much much richer, even worth more than Nintendo again.







