That's not it actually.
Even if you were starting from scratch, Tasmania wouldn't be one of the 18 best options. (well, 14 if you accept that 4 will be set aside for expansion, and thus operate under different criteria so only consider the heartland areas).
Says you. If North Melbourne put up their hand to relocate lock stock and barrel to Tassie, Gilligan would hire the Spirit of Tasmania and throw a week long party. He would be overjoyed.
If there was an easy way to make it happen, it would. North are unwilling and it is virtually impossible to shoot a side now, especially with the 2 new northern clubs stinking up the joint.