For me it's less the actual "effect" of the ban and more the idea that the state can ban something that doesn't harm anyone else that you do in the privacy of your own home with other consenting adults. I blows my mind that any 18 year old girl can drive to California and start a pornography career, but it's illegal to spend your own money on a game because it contains an element of chance. Not that I'm for banning porn or anything.