The house percentage on card games is fairly low compared to games less vulnerable to player "strategy" such as wheels, slots and dice anyway.
I played poker once in Vegas. It seemed the House took a much larger percentage than say the slots. Certainly it was more than I was comfotable with. I like playing with friends in the basement for small stakes.
Some card expert or another, many years ago, summed things up for you: "If you can't stand the vigorish, get out of the game." Oddly, Google can't seem to tell me who it was, though I want to say it was that same Hoyle who wrote the book with all the rules in it...
Of course, vigorish collection is one of the main (it not
the) reasons for the push toward "Hold 'em" style "poker" in casinos; the house can run such a game with a house dealer, house shuffles and a shoe, and by hauling in the bets before distributing the win, make sure the vigorish is a percentage of the pot rather than just a dollars-per-hour chair rental. I agree, penny-ante with a few friends, and the only "vigorish" being an expectation to supply my own beer and bring a bag of chips, is much more my speed -- and draw poker is where the real skill comes in, as far as I'm concerned.