I agree that cheap electronic or mechanical is a great way to go, and if you look at the OP's list of cameras you can see he's already gone that route as well (as have I). But that route does not offer the capabilities or user experience that his G2 does, which is why he's bummed about these problems, just like I was.
What can you do, that's film photography today; You can buy a "modern" high quality, highly capable electronic film camera like the G series and hope to get some years of use out of it before electronics or parts availability kills it, or just bite the bullet and get a vintage/cheap/mechanical that you don't really want.
I do think you can still buy the G series and have them "pay for themselves" with enjoyment and excellent negatives over time, but you have to be realistic about what you expect from the experience, and for how long, and what you're ultimately paying for it.