Originally Posted by go_steelers07
counting cards isn't illegal as long as the player doesn't use any external device to aid in the counting.
He never said it was illegal, but it is frowned upon and it WILL get you kicked out of a casino for trying to beat the system and better your odds.
Just like trying to "search" or "cherry-pick" from a case of cards. Not illegal, but frowned upon within the hobby and will get you blasted for trying to beat the system to better your odds.