Don't know what a normal limit in Vegas is, but it was all over the news back in February when Jennifer Lopez bet $ 400,000.00 on the Tampa moneyline at the SB ... won $ 650,000.00 if I am not mistaken.
When I was still playing at SBG they said they would take up to $100k on a bet, and a friend of mine said that they would go way higher than that for preferred customers.
One thing I've never understood is why offshores sometimes have vastly different limits for online bets vs. phone-ins. Never has made sense to me.
Phaedrus