If you research low Limit Texas Holdem online, you'll find that a decent player should make about 1BB/hr (one big bet per hour) on average, with a pretty large standard deviation. Unless you're playing aR$10-20 limit table or higher (which I was not willing to do), that hardly seems worthwhile.

1-4bb/100 is a good, solid win rate. 5-9bb/100 is an exceptional win rate. 10+bb/100 is absolutely crushing the game.