[WordWhiz]

I have a half completed article that sort of addresses this topic. It compares bonuses, rakeback, and table fishiness to determine what matters most at various limits. At low limits, sign up and reload bonuses are worth way more than all but the fishiest of tables. At ultra high limits--like 50/100, one slightly inferior player who increases your win rate by even .25BB/100 (for $25/100) is worth way more than all the rakeback and bonuses in the world. A true fish is worth his weight in gold.

2/4 was about the triple point--where bonuses, rakeback, and table fishiness all converged to increase your $ by about the same amount. If you think the fish factor on party is a big deal, and you evidently do, I'd recommend still playing there even w/o rakeback or bonuses.