>> reporter: barbara has suffered from bipolar disorder and sore knees. she said marijuana helps a lot. a few more pufs and it's time to put this joint away. >> there it goes. see? and then you cap it. and that will put it out. and you don't waste any tobacco smashing. voila. >> reporter: why are the tours so popular? they get to stop at four dispensaries, they get endless gourmet munchies and they get a personal cannibis concierge who helps them understand everything they need to know about marijuana. >> it's been absolutely amazing. >> reporter: addison morris own this is tour company, colorado rocky mountain high, and can barely keep up with the demand, even at about $300 per person. in these parts, people like her are called ganjapreneurs. >> how does that label feel? >> i think that's a perfect label. this is what colorado's all about. this is who we are here. we were built on silver, gold and oil, and now we're built on the green. and it's really good green.