[fluff]

Actually your suggestion is not a good one. There are tons of sites (virtually all others), that offer lower rake than Party.
None of them come close to even half the customers Party has.

Furthermore, as the Party Poker Bad Beat Jackpot shows, there are tons of people who don't mind paying even more rake, for some flashy ultra long shot promotion.

Most poker players (the fish) don't even know how rake affects them. I doubt that any of them even know what the rake rate is for Party, nevermind other sites. What attracts them about is fancy promotions, tournaments, advertising and bonuses. And what attracts me is fish (and maybe bonuses).