They're not in the same category, and it's a lot more complicated than "victimless crimes" vs. "crimes against property."

Someone who speeds, runs stops signs, or for that matter, drives drunk, endangers others besides himself. These are not "victimless" crimes.

Gambling is usually only a problem for the gambler, but it's undeniable that crime has accumulated around even legal gambling.

Prostitution? That's a tough one. In an ideal world, where it might be a real adult career choice, maybe it's "victimless," but in the real world there are a lot of prostitutes who weren't given much of a choice.

Using mind-altering substances is almost universal in every culture at some level or another. It's hard to outlaw human nature.

With "victimless" crimes the question you have to ask is if the crime generated by bypassing the law - and it WILL be bypassed - worse than the damage caused by the activity itself?

The answers aren't simple, but I believe they can be found.

Maybe a good first step would be making marijuana use legally equivalent to breaking the speed limit. Busted, fines, marks on your record, and such.