I've had an electric lawn mower for about 10 years now and I can tell you that it has reduced my maintenance costs. For the ICE mower, I had to take it in every spring or every other spring to get it tuned up so it would start (from memory those bills were ~$75 each tune up).
Same with the ICE snowblower that I bought back when I was young and dumb seeing all my neighbors with one, so I bought one - what a maintenance nightmare. I use snow shovels now which are way better for the environment and my health.
My neighbor has one, but I think he often uses more time working on it than with it. I've considered one, but honestly, it's just my driveway and I'm (still) relatively young so I can shovel for now.
Same with the ICE snowblower that I bought back when I was young and dumb seeing all my neighbors with one, so I bought one - what a maintenance nightmare. I use snow shovels now which are way better for the environment and my health.