Average Rake Low Limit B&M vs. My Local Cardhouse (?)

[hamsterhead]

I've been playing a decent amount at my local cardhouse...mostly a 1/2 limit game, but a bit with a 2/4 as well.

These players are all terrible, and while I'm not going to claim I'm the best limit player out there, I do know I'm a much stronger player than most people who sit down here. The rake though, seems a bit much for these games, and I'm wondering if this is cose to average or on the high side. I'm really questioning if I can beat these games with such a rake (although I'm currently beating the 1/2 for a very small amount).

1/2: $1.5 taken on the flop, $.50 on the turn, $.50 on the river. All hands pretty much go to the river, so it's almost always $2.5 taken from the hand. This becomes very very painful if only 2-4 people play the hand. The rake takes almost the whole pot at times (or actually will often take the whole pot when a button limps and big blind checks, and they decide to check the meaningless pot to the river).

2/4: Same structure, but doubled - $3 flop, $1 turn, $1 River.

Does anyone have any insights on this rake and its overall effect on profitability?