I'm new to vaporizers, & I just ordered a 901 & supplies from Vapor Guys, although I think I overpaid. Regardless, if this doesn't work out, I'm out $75, not the end of the world. I'm concerned about supply; I get the distinct impression that the supply of e-cig devices & fluid is tenuous. Just going by what's on this forum, you've got: an uncertain exportation ban in China, the source of all things e-cig; domestic distribution that's entirely dependent on importation; the whole Puresmoker frenzy, etc. Generally, you can't just run up to a smokeshop & buy a pack of cartridges & a replacement vaporizer - do you think this will change? What about your domestic suppliers as they are today, do you worry that they won't restock, or that they might close up shop altogether? Seems to me that at a moment's notice, domestic suppliers won't have a line into China for their e-cig stock, & *poof* there goes your habit, in a cloud of smoke (vapor?).