First of all, the casinos have made it very clear that they find card counting "illegal" in their eyes....so it's illegal.
Second, it takes all the joy out of the game by constantly counting cards and maintaining a "running" tally of points.
Third, just as in life/business/romance etc...risk is rewarded. Card counting reminds me of the guy who wants to never take a risk, who never wants to chase the pretty girl, who would never open their own business, etc... ALL THE WHILE CARD COUNTING IS FLAWED.
When speaking of minute mathmatical edges over the "long run" using forumlations based on "million or thousands" of hands...is ridiculous.
To be successful at card counting, you must play properly. The casinos are watching for you. How well can you do before you're booted. 12K or 20K? Never get there, you'd be gone long before that type of a run. So, what's the point? $400 bucks or $1000 bucks here and there? Hardly seems worth the effort. Perhaps a better paying career or a successful business would be more appropriate.
I'd love to watch a "pro" card counter at work. See what he can do.