WSEX made $7,000,000 profit in fiscal 2000 according to an article I read last year.
I'm sure that figure has gone up along with the popularity of online gambling.
WWTS made good money too according to their statements that were made public once the takeover was announced.
The books that know how to book properly and don't give away the store in bonuses make money, plain and simple.
Betaustralia makes good money too, go read their financial statements.
BC bets made some big dough the last few years courtesy of a whale from Canada who dropped some big money at their store.
So despite the scammers, chargebacks, DOS attackers, there seems to be enough degenerate losers out there so that the books can still come out ahead.