I believe DMT only lasts for about 20 minutes, but it's supposed to be an extremely high-octane psychedelic experience.Ya it's pricey but at the end of the day if the quality is there it's well worth it. Finding that anywhere else is practically impossible. The powder form is pretty reasonable but I'm not very well versed on how to consume it and there is a realistic chance of ruining it. Dmt is something I really want to try. Considering it naturally occurs in our brains I think it would be a really interesting trip.