A lot of them are ther because cannabis is their business/work. People are making great money out of these “medical dispensaries” and the black market is still alive and well because they don’t require Rx, and they don’t pay taxes, so they are cheaper. It’s all about the benjamins.
Just read a story in WSJ today that because none of the Colo pot biz can be transacted in the banking system, huge amounts of cash are laying around.
A group of former military have started a security service that’s booming.
http://www.bluelineprotectiongroup.com/