Goats are ideal in some situations. They can clear out stands of poison ivy with no ill effects on the goats. I think they work best where they have a home base farm where they can be sent out a few days at a time for non-goat-owners. They seem to like most stands of scrub and brush.
I was going into a little Chinese food buffet near work in a research park, with intermittent farms, and a little goat kid came clip-clopping up to greet me. I was so charmed with the little guy, I picked him right up and bounced him a bit while he ate my necktie. I think he lived at an adjoining small farm.
I'm still in the hunt for a mower. I'll probably get one and see how it goes. Lawn crews cost so much, and want to be put on contract for weekly visits, and often don't have good English so I'm not sure what I'm buying, that if I could get a few summers out of an electric mower, it would be a savings.