As always, it's ROI. Will dividends be paid back in a reasonable time on whichever "system" you use, whether it be ICE, EV, geothermal, solar, pick whatever you like? Break even points are good to estimate for these ROI's as well. Say, you're 75 years old, and you won't see a break-even point for 20 or 30 years, would it be worth it? Maybe if you're 35, probably not 75. Gotta do the math for your family and situtation. Unless you just like paying for stuff. Stuff like this shouldn't be a decision made from emotion or nostalgia as you would by tossing money at your favorite G-body. Lord knows we've all spent money (aka wasted) on our cars and received no dividend or negative cash flow. But we didn't mind that much because...G-body.
Don't make a potential wrong choice, either. What you think you're getting may not be there in 5 years. For example, how many solar panel companies make them in the U.S. that could keep up with a wholesale demand? Maybe a handful at the moment. That could change though. LG (Korea) claims they're stopping production this year if they hadn't already but I haven't kept up with that. If the materials or components are made in say, China, and things go sideways with them in a few years, you may not get replacement parts until they take over. If they lose, the factories would probably be destroyed so you still won't get them. Or, we'll all be destroyed and it won't matter.
I've probably mentioned this before, but when I was on submarines in the Navy back in the 80s, the rule was NO replacement parts would be foreign-sourced. Reasoning behind it was mentioned in the previous paragraph. I was replacing a Kunkle brand 2" blot-on fuel oil relief valve for the ship's emergency diesel (I think it was just a wore out OEM one from 1963) and when I got the new one out of the box it had Japanese/English writing all over the tags. WTF? Wasn't even a Kunkle brand valve. The flange bolt holes wouldn't line up right (recall this was the 80s before Japanese manufacturing became very good). I went back to the supply guys and it was the correct NSN part number on the tag. They had to fly an old, dusty NOS one from Norfolk to us (Those Air Force guys were good for something). Bolted right up. Apparently, something went haywire and we ended up with a foreign-sourced valve. Later, the supply officer told me that I opened up a big can of worms for him. I told him I surely didn't. I just wanted to finish the job but the new part wouldn't fit and we had to get one that did.
We've got aspirations to downsize and move from our current home in about 5-10 years, so we're just going to roll with the electric company's bills for electricity until then. Maybe if we build a new house we may look into what is available then, because at this point, I don't think anyone knows for sure where we'll be with all this. Geothermal looks interesting, but I haven't done much research in return cost-viability. But the maintenance SEEMS like it wouldn't be difficult at first blush. Evolution should come more naturally with choices.
Meddling with those choices to get your own desired outcome means the messaging is falling flat. Or maybe your desired choice isn't the best one for the moment.