Earlier quoted context omitted.
Automated lawn mowing is relatively mature at this point and works well, assuming you have a relatively flat lawn. A one time purchase price of 20k would be acceptable. $20-30k per year is ridiculous. For that price you can hire a person to come and clean your toilet for 5 hours a day, every single day.
So... I have a gardener. He works two days a week doing all kinds of stuff. The mowing itself (and trimming) takes 5% of his time, or even less. Funny how people enjoy automating the part that you easily could do yourself without a massive time impact.
I'll continue doing stuff myself or paying humans. My time is too valuable to waste on empty promises that tech will save me time.