It's a dangerous, stupid idea- and from a completely selfish standpoint, it kills the roll to know you'll have to "sober up" in a few hours and run the risk of getting pulled over and arrested, even if you don't harm anyone.
I treat rolling like a special event, I don't skimp on expenses like cabs and cover charge. I see the best DJ's at the best venues, get the best tables and only invite people I really care about...nothing is nicer than the comfort of knowing we will all be safe and not have to put ourselves or others at risk, we can cab it home and continue the party at home.