Depends where you live as to the cost. If it's a legal or non legal or a medical cannabis state. I see the East Coast cost more than the West Coast.
Sept 11, 2015
California
The volume weighted average price in California was $1,884 per pound, down 1% from $1,900 last week. There were fewer large (50+ pound) transactions reported, with the average deal size decreasing to less than 10 pounds.
Oregon
The volume weighted average price in Oregon was $1,841 per pound, up 2% from $1,802 per pound last week. Reported transactions ranged from $1,100 per pound to $2,225 per pound. A report released by the Washington State Institute for Public Policy provided a preliminary evaluation of I-502, the initiative that legalized cannabis for recreational use in Washington.
Washington
The volume weighted average price in Washington was $1,843 per pound, up 9% from $1,689 per pound last week. The largest volume transactions occurred at our around the $1,800 per pound price point, while the highest observed price was $2,400 per pound.
Colorado
The volume weighted average price in Colorado was $2,040 per pound, a decrease of 2% from last week’s price of $2,090. The reported week-on-week trading range narrowed to $750 per pound from $1,100 per pound last week.
Nevada prices averaged $2,643 per pound
Arizona prices averaged $2,430 per pound
Michigan average price increased 13% to $2,631 per pound. Ahead of the statewide initiative noted last week, the Detroit City Council may soon see a proposal to regulate medical cannabis dispensaries in Michigan’s largest city. There are currently dozens of dispensaries operating in Detroit, but as they are unregulated and unlicensed, the exact number is unknown.
Washington, D.C. was $2,770 per pound, a decrease of 8% from last week.
Black market prices averaged over $3,000 per pound in New York; in Wisconsin prices decreased 5% to $3,100 per pound.
I couldn't find stats on Alaska. If anyone has info let everyone know.
I will look for Canadian cannabis stats.
EDIT
This is from spring. I like the map so I will add even though they're old prices. This is what the average Joe pays for an ounce last May 2015. Cannabis on the East Coast is expensive.
All 50 States Ranked By The Cost Of Weed (Hint: Oregon Wins)
This I had posted elsewhere on FC. It's averaged out I think with medical and legal also black market thrown in.