How can you sell them on the vow? You can't sell them or transfer them. I guess you could sell some of your seats and the buyer would have to walk in with you?
My seats are $35 regular, $50 with the vow and $70 without. So they doubled which seems bad BUT if enough people take the vow it will take a lot of seats which could have been sold off the market and make the remaining more valuable. I have no doubt any games I can't make I can sell for well about $70 each. I just sold the Sharks game for $160.
I think this is a bit overblown by the Knights, but I get it. Nice intent to make the building a little more partisan. Fact is they didn't really need to do this. Locals are the buyers of playoff tickets due to the nature of the short scheduling window so unless its a team with a huge local following like the Kings I don't see the arena being overrun with opposing fans. The teams with big local fanbases are mostly not in the playoffs or are Eastern teams so won't have to worry until the end. There will be some certainly, but not the huge numbers that come when you have a pre-set schedule that people can plan around months in advance.