Title should be prefixed with [ASK HN] :)
Also, Always. Especially if the want to change their contract.
Also, Always. Especially if the want to change their contract.
Even though it may break the deal for everyone else? In the meantime, you can't know if it will.
I would also explore if there is a way to make the deal a better option for you. Negotiate. If you've explored that, and it's still not, then walk away.