I have a few legacy Google Apps for Your Domain accounts, but lost the domains per-se several years ago during a perfect storm of clinical depression and financ

I have a few legacy Google Apps for Your Domain accounts, but lost the domains per-se several years ago during a perfect storm of clinical depression and financial hardship (which hasn't really ended, just tapered off a bit) where I let the registrations expire. The domains are now being squatted on. The legacy accounts still work for things other than email like Drive, but I've mostly switched to using my Gmail account on Android and elsewhere. I'll have to think hard about whether I want to start paying for the custom domain accounts, to preserve the option of eventually registering new domains to associate with them (I'm unlikely to pay what the squatters are asking for the original domains I lost), or just do my best to migrate all the old data off, finally.