[Slim Pickens]

I see no problem with staying at the 5+1's while learning the nuances of NL. Why waste more money learning when you probably a losing player? Limit tournaments are a great way to learn opportunistic stealing since it's even harder to do it in limit than NL, so you're getting good experience in a format with which you're probably comfortable. NL is more profitable in terms of $/hr, and the games are easiest to find and multitable, so that's why most people stick to those. Don't get too caught up in the "robotic" play thread going around. It's a great academic excercise for more advanced players but it's not reccomended you actually play that way if you want to become a good player.