No doubt, the 90K would have been nice. But it's not like that would have been free money. Your coworkers are paying for it by having their lives turned upside down, knowing that a job hunt is coming but not really being able to get on with it because they need to stay for the payout, probably looking at cutting back expenses and lifestyles (yes, we've all done that but it's different when you do it because you want to for the freedom vs. having it handed to you), dealing with the stress of all the family members who are having their lives changed around. Not to mention that your workplace is going to be a misery for the foreseeable future.
You get to miss all of that, strolling off into the sunset with your plans, ego and budget intact, for the low, low price of money you don't actually need in the first place. And you don't even have to go through the internal struggle of "stay or go." Decision's made and you can head off on adventures.