Hmmm? someone got lubed lol
I can get custom software & servers for less than 25k, I've done more than just talk to people.
of course, I'd want a phat escrow account (250k min.) 6months wages for staff & support, decent ad budget etc. yadda yadda yadda!
I could save a ton thru sweat equity also, but its nowhere near what you quoted!
The market looks pretty saturated to me?
It would be a tough row to hoe just starting from scratch

The only way I would go for it is, if it was an existing community taking a leap forward, like what poker.com has done.
Be a pretty scary proposition otherwise IMO.
cheers