I rebuilt my house from the ground up, from the foundation to the studs to the drywall, by myself, it was the cheapest on the market for a reason. So don't worry, the callouses are plenty.

You'll do fine with an electric leaf-blower. If you have a landscaping business or maybe 20 acres, I'd say you're in a pickle and frustration is definitely justified.

The batteries can be a pain and a lot of the cheap ones die quick, buy a few extra quality batteries and remember to charge them. With the cost of gas alone you'll end up saving money in the long-run if you're out there as often as you suggest. I built a solar generator that powers my garage which is where I charge my batteries, so it litterally cost me nothing but the initial investment. I have a quarter acre and do my neighbors half acre, 2 batteries ~$30 a piece let's me weedwack and blow. My mower goes through 2 and I have an extra one just encase I need it.

Having to replace everything you have definetly sucks, I feel like they should just stop selling them and let the ones out there go until they die instead o prematurely going in a landfill.