If you're building a n/a race motor.. what horsepower per cubic inch would you be happy with?

Me personally, I think 1.5 per cube is a dissapointment... while 2.0 per cube is do-able.. if you have a big enough checkbook... So I was just wondering... at what point would you pat yourself on the back and say "job well done" ??

Disclaimer: I know there are a lot of variable.. such as expectations... reliability.. repeatability, components and etc.. so for the sake of this discussion... lets say its the average of the average race motor build..