Limit and No Limit are two totally different animals.
I started playing live in '69 when limit stud and draw were THE games in the rooms, with the exception of the high stakes or private rooms 'upstairs'. I still prefer limit games.
Why? I play for 2 reasons. Enjoyment of the game and expectation of winning. I find little enjoyment in betting the farm on one hand, and online, often pre-flop. How many times do you have the absolute nuts when you bet or call an all-in? No Limit is more like magic - one 'poof' and you're gone.
I guess if I had an unlimited BR and could sign marker after marker, or do buy-in after buy-in, it wouldn't matter. More power to those who can.
At least in limit games, I know what each max round could be, how it affects my stack, what I see on the board, am I hitting or not, etc. That's a different kind of math than 4xBB, pot bet, implied odds, fold equity, value bet, etc, etc.
Any time you call or bet an all-in pre-river, you are turning your future over to Lady Luck to handle for you. Sure, it's math percentages, but aren't there days when you can't get AA to hold no matter what you do? Then the days when 99 will win every time for you? It's your luck that day - not skill.
Millions of books have been sold about how to play this and that. Have the majority learned? I don't think so.
Just sighing and saying - that's poker - doesn't cut it for me.