I agree. I wanted to like dripping and I really wanted one of those cool-looking T-Tips. But (knock wood) the only times I've completely killed a 510 atty at 5v was when I tried dripping. So I'll just stick to my carts.
So far, my attys last about 6 weeks before the draw becomes too hard as to make them unusable. Even then, I've managed to resurrect one to almost like new by doing the dry burn technique. Then (never one to leave well enough alone) I tried dripping again with it a few weeks later. Killed it.