You can and should play without rakeback if you expect your winrate to be greater than that of a site with rakeback. Rakeback and bonuses are more important the lower the stakes you play since rake takes out a higher % of the pot. Although you probably don't play a high enough volume of hands, if you were to ever play bundles of hands in a month, you would notice the benefits. 
 
For the sites that I have rakeback at and I play at... 
 
UB - 28% 
World Poker Exchange - 100% 
CD Poker - 35% 
 
 
Sites that I play at only when I have a bonus going 
 
Bodog 
Full Tilt (which is 42% rakeback with a bonus going)
		 
		
		
		
		
		
		
		
		
			
			
			
			
			
			
			
			
			
			
				
			
			
			
		 
	
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