If it's the only game in the world,yes.
I personally avoid casinos that only deal 4/6 and sweat action. It also slows the game down. There are too many other casinos around that have no problem dealing out more cards.
I was checking out a sweaty 4/6 casino last year were a ploppy was flat betting $500 a hand and the shuffle card came out after a little over 2 decks were dealt. I couldn't hold myself back from laughing out loud at the dealer and the pit boss who was watching the game. The pitboss looked directly at me as his face was blushing. I almost felt like calling him a idiot.
Anyhow, even if 4/6 is the only game in your area, counting is still better than not counting at all.