He can DEFINITELY afford tickets, but Floyd Mayweather says he WON'T be hitting up Jay Z's post-fight mega-party in Vegas -- there's another place he's already committed to be.
TMZ Sports spoke with Money at his media day workout at his gym near the Las Vegas strip Tuesday night ... when we pointed out all of the post-fight party options ... Chris Brown, Nicki Minaj, Snoop, Jay, etc.
By the way, VIP packages for Jay's shindig are on sale for up to $50k!!! Insane, but a drop in the bucket for Floyd.
So, where will Mayweather get down after he steps out of the ring?? His answer is pretty shocking ...