I have seen countless websites, ads, and have had people trying to sell the idea of investing money in to so-called "lucrative" Cannabis/marijuana stocks. The idea here is that marijuana is a growing business in the U.S., and thus it's highly success and the ROI on such stocks/investments are said to be extreme due to the booming uprise of marijuana legalization, growing, businesses/selling, and etc. I am wondering if this is merely exaggeration or if there's a real niche investment opportunity here.
The so-called websites are often pushy and talk about how marijuana investors have made "millions by investing small funds in to booming marijuana stocks." Some claim that anyone is guaranteed to make high returns due to the increases in marijuana legalization and stores & expanding outreach. I'm guessing this is based on the fact that a marijuana growing business can make big money sometimes.
Is there any truth to this, or is this another niche scam that's been brewing the last few years?