Heh, nice one airspirit...
I think that there would be too many dead people in the real life...
When Half Life was out, I played it several days non-stop, like play, eat cookies while play, pause for cooking more coffee and buying some cigarettes, again play, and sleep for some 8 hours. Something like three days in a row, if I remember corectly...When I finished the game, it was time to go back into the real life, but after so many quickloads, I was like almost invulnerable, mind still playing the game...I was crossing the street and was almost hitted by the car...And only thing I felt was that nerve impulse to hit F9 again...That kinda sobered my mind...
Another thing...If something like that is possible, the first thing to became commercial would be pr0n...and if one can feel the pleasure, surely that pain is next...(darn Matrix!!!

)...and even if adjustable in level, imagine the next generation of viruses, that might became deadly...just to crank up the level of sensation...
What more you need, how many people died of side effects of viagra (heart conditions)?

I wouldn't be so paranoic if they wasn't following me all the time...