The trade-off isn't worth it. Sure, the money would be fantastic and would allow you do whatever the fuck you want for the rest of your life, but you would also be selling your soul for it.

All of your meaningful relationships with friends? Gone, chances are the people you currently have relationships would disassociate from you. New "friends" would only be interested in your money. Family would probably ostracize you, they can't look you in the eye getting notifications every single time you hit up the spank bank. You'd become a laughing stock, everyone you meet would know who you are. Your reputation would be trashed and nobody would ever take you serious again.

Sure, you could buy an island and a fleet of exotic cars, hell you could buy a country with $15b. But you would be miserable, life would become a living hell, and you'd probably get severely depressed.