Moving up to Street Prepared worth it?

[j.fro]

FWIW, in 2010 Courtney Cormier was the SCCA ASP National Champion driving a fully prepped Vette. At least half of the others in that list are also quite accomplished. Chris Cann is having a breakout year.
You're doing great this year. Think about the cost to max out your car for your current class, then think about the cost to max it out for ASP. In ASP do you think it will be competitive with the cars that are winning?? Look at SCCA Nats...what cars are winning, and how are folks doing in base 986es??
By The way, moving to ASP is going to move you down the list in PAX. PAX is so the slow cars can feel good about themselves. Go for class wins and FTD.