Strangely enough I was speaking more from the “courtesy” point of view but you bring up some interesting points. Frankly unless I had reason to suspect that something was going to fall through or that my ticket was fake, I would be fine dipping into my other assets, even retirement ones to live for 8 months or whatever if I knew I was getting 100 million.
My thought is I like my job (enough), and it’s been good to me, so what would I do? Would I give two weeks? On one hand, one of the main reasons you give notice is to maintain your professional reputation, and that no longer matters if you never have to work again. Plus, if you got killed in an accident on the way to work during your final two weeks, your ghost would not be very happy with you.
On the other hand, giving notice is usually greatly beneficial for the employer and what’s two more weeks to help an employer you had a good relationship with when you will never have to work again when it’s done?