In my opinion legals are cool for when people want to put up some nice burners and don't want to worry about getting booked. They are also useful for exhibits and gatherings. But on some reals, they don't decrease the amount of illegal graf and they certainly don't make illegal graf look better. To make illegal graf look better, you need to go out bomb and try to figure out how to make it look better. Having a legal to practice on don't make sense. Use paper to practice on. Use walls to show what your practiced and perfected. It would be cool to have walls that you can go and paint and not have to pay for a permit and have to deal with paperwork but that aint happening anytime soon where I live.