Supposedly, the world's first ever weedery will be opening sometime in the not-too distant future in Denver. I'm not sure if this is a good idea or the grim beginning of commercialization.
Commercialization of cannabis has been under way for years now. Its mostly big business already in terms of the recreational market. This project is in my opinion nothing more than an attempt to make money serving a niche market. More power to them, but personally I wouldnt pay anything extra or consider it worth much extra value to tour the grow where I buy my cannabis.