I have a policy on not listening to leaks if it's something I'm supremely looking forward to. There's barely anything better in the whole wide world than listening to that fresh new album after you get it in your hands.
And if it's shit you waste money, I like to know what I'm paying for, I have a thing about quality, and with the way music is saturated, I'm even more reluctant to part with cash, for me the leak has quenched my need, made my ears happy, and makes me want the extra track version, and the Instrumentals when dropped. My morals are intact enough to do things like this, some will download and hoard for the sake of it. An example, I have Dag Savages new album, in a couple of weeks, I'm seeing Blu Exile,and him, I'll buy them a drink and then give them some cash and a map to the best breakfast bar going for the next morning, hopefully his album will be on sale there and I can get it, but sometimes we don't get the grace of some stuff being pressed to vinyl, again I'm not paying for 2nd rate quality.