>Do you ever calculate your GOOG salary and multiply it by the number of years you've been bootstrapping and have any regrets?

I've definitely thought about the number, but no, honestly no regrets at this point.

I got an email from a Google recruiter a few weeks ago offering to rehire me back at my old level with no interview or interview for a higher level, and it wasn't tempting at all.

I miss things about Google, and there are things I hate about bootstrapping, but overall, I definitely prefer the autonomy of running my own company.