Also that 1% would keep on diluting before the money would actually become liquid. I figured that the 1% would be 0.35% if the company had IPO'd in say 8 years. At a 1B valuation, I'd net 3Million before taxes, while the company would have gone from 6M to $1B in valuation. This didn't seem fair and I said no to this offer.

I'd have no financial regrets at the $1B valuation, but I'd if they make it to $10B/$100B.