Corded chainsaws, hedge cutters, strimmers, wood chippers etc. are not really feasible for rural parcels or for professional gardeners, but in my opinion for a larger suburban plot they really hit the sweet spot and are often overlooked: not nearly as noisy as gas powered (work on Sundays without upsetting the neighbors!), lighter in weight, no maintenance, much more powerful than tools with batteries, you never run out of power, half the price of a cordless tool. Yeah, sure, rolling up a 50m extension cord is a pain in the ass, but in exchange you get tools that actually work.

It does look like the California law also applies to professionals (though see jakewins' comment), which probably sucks, but I'm seeing more and more 36V gardening tools pop up, so maybe the transition won't be as hard as it looks.