I too put more effort into keeping my grandfathered account than I ever got out. In my case it was my login getting trapped up by extra "security" to verify from a "previous device" when all such "devices" were long gone browser sessions, and having to go through the support bog to regain access.

It always seemed like GApps on a custom domain would be good for something. But whenever I looked none of the services were compelling. Other side of the lock in looking glass, I guess.

Given the dilemmas I'm seeing other people face (eg family got used to gmail on the domain, and either having to walk everyone through migration, or just give up and pay the Danegeld), I'm glad I dodged that bullet!

About the only Google service I rely on is Voice, which would be easy enough to move except I don't know any other VOIP providers that are as a good as being accepted for snake oil 2FA and the like. I think Google gets a pass due to Project Fi. Does anyone have any recommendations? The best option running seems to be getting a paygo SIM, pop it in a stationary cell modem, and use that for snake oil 2FA. but shrug

I had a domain that I let expire, but the associated Google Apps remained valid and I continued to use it