Don't even buy shwag,it's not even worth it..
I realisze alot of stoners don't even care what they are smoking as long as it gets them high,But if you define it as shwag,and very lowgrade cannabis why buy it when you know it's crap???
I've had a friend smoke a joint (of crap) with me when i had no bud,as I was Feeling sore,It wasn't complete garbage like mexican brick weed,but still,The only effect it produced was a headache.

The Only way I would ever stop smoking marijuana would be if
the following things happened.

1.If I Had to pay the same Price as Some Americans for connoisseur Medical Grade Cannabis(i.e $720 for ounces of purple Kush some places, I think Philly)

2.If all that was available was Shwagg or chemically grown mids/highs

Even if this Happened I probably wouldn't quit smoking,I'd be forced to Grow my own Organic medical Grade Cannabis.