I had a friend give me an ounce of Mexican weed last year. That is a fair bit of weed. I tried a sample one night, and then gave it back. It wasn't worth keeping around, even for free. I knew I would just never use it, it was typical Mexican ditch weed and my tastes had gone to better things.
So which beer did you want? Sam Adams, or this Miller with a cigarette in it? The Mexican weed is just disgusting now. Only people on a tight budget will use it, not people with a choice; maybe 10% of the users I know. Everyone else gets the good stuff. Light, fluffy with 20 strains to choose from, tested and graded, and you can pick out the individual bud that speaks to you; or compressed brick that smells a little like coffee or grease and has an unknown THC level, unknown origin, unknown anything.
The only positive attribute to the Mexican weed is price.