How much does legal marijuana cost? Feb 17, 2018 22:45:56 GMT via mobile Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by moviebuffbrad on Feb 17, 2018 22:45:56 GMT Someone told me they spent $115 for a quarter. I've only been to a dispensary once. Got a joint for like $11 I think.