Your argument is not without merit but it's the same argument that can be made of any other producer. Including one you are currently invested in that starts with an F and ends with an X.
My counter point is, as previously stated, Tweed is eyeing international expansion. They have the cash, if they prefer they have offers from Canadian banks for loans, and the experience in doing so. The next few years is going to be interesting and I suspect as other countries fall in line with the winds of change the Tweed brand will be there.
There is also the 2015 election which if Liberals win, and polls currently show that might be the case, recreational MJ will likely be in play.