These delays are about money.  There will be costs but until the provinces know how much they're going to get, it's difficult to plan.  No one want to put a plan in place that has a net cost.  They all want to make money.
 I suspect the producer price will be between 1 and 2 dollars a gram.  With the street price around 10, that should leave lots of room for taxes and profit.  
John Tory announced this week he wants a cut for Toronto too.  Let's hope that doesn't happen; otherwise everyone will have their hand out, the price will go up and the illegal market will continue to flourish.