My take is that Ralph isn't nearly as loyal to the city or people of Buffalo as many here claim he is. He has always been a shrewd businessman and he understands that there are substantial short-term fixed costs associated with moving to another market. He has a favorable (short-term) arrangement right now given the current lease deal, a yearly windfall from a game in Toronto, etc. For a guy born in October 1918, there is no long-term.
...Personally, I think if he was "loyal" to Buffalo he would have provided a transition plan to assure us that the team stays in Buffalo after his death. As we all know, he most certainly has not done that, which makes me hesitant to support the team financially right now. If I though the team might stay after he dies I'd be at my usual few games per year... but I cannot in good conscience line the pockets of Charles Montgomery Burns only to see my beloved team leave in a few years.
That said, I really hope Terry Pegula develops a love for football very soon!