Aside from it being completely unsutainable as an 'addiction' as well as the fact that you'd be one strange individual if you embarked on such an experiment...
I once smoked DMT every day for about 2 weeks once. It was during a period of serious drug addiction, I had run of of Ketamine (which I had been more or less addicted to for 3 months) so I suppose that was part of why I was doing this. I mean, it wasn't bad. If you had a kilo of the stuff, sure, I reckon you could smoke it every day. But it's not addictive, tolerance does build a little bit...but DMT is insanely powerful so tolerance just means that you stay in your body, it doesn't mean that it's not like peaking on a ten-strip.
The main thing was that tripping that hard, that much...it takes a toll on your ability to relate to the world and what the fuck is going on. My (now ex, big suprise there) girlfriend at the time did not appreciate it, for instance. By the second week, she was absolutely sick of my latest download of DMT transmissions. I mean, really. A sharman in a hut alone could do it a couple of times a day in a hut for 6 months, but he'd have to stop taking dmt to go back to society and function. An experience lke that is not mean for daily use.
It did help psyche me up for kicking opiates...in that respect it was actually really good. I'd probably do it again, but at the same time...I probably won't. You dig?
Actually, also- being a junkie probably helped/allowed me to be able to do this. The junk didn't make the experience less intense, but I was very calm, very relaxed. It would have been a lot messier without the junk. Definately.