I couldn't vote because there is no BOTH option.
I still buy, for a couple of reasons: mainly, because variety is the spice of life, and every once in a while some really nice shit rolls through, so I'll buy a quarter of it. What's a $100 here and there when you have $1000's of the stuff in your closet? But the other reason is, this keeps up the appearance that I am just a regular ol' smoker, and not a grower. No one stops to think that a guy who buys weed is also a grower.
It's a subtle tactic, but I believe it goes a long way.