Good, they aren’t needed anymore since electric ones do the same job.

As a homeowner, sure. However, if I had a landscaping business, I would need something that can run all day.

Carpenters do just fine all day with electric tools. Replaceable batteries are a thing!

You underestimate just bow big and heavy of a battery you would need to power a leaf blower all day. Gasoline has 50-80x more energy density than a lithium battery. I suppose you could bring a bank of smaller batteries with you and swap them out throughout the day, but that means another piece of equipment to lug around, and climate control becomes an issue if you live in a hot climate. Batteries and heat are not a good combo for safety and reliability.

I was thinking in the context of a landscaping company driving to a bunch of different clients’ houses and doing general cleanup and maintenance, lawn mowing etc at each one. Electric lawnmowers now have dual battery packs that you can swap between, each one lasting about an hour. I wouldn’t expect a leaf blower to be much different in power requirements. Couuld probably even share the same battery design with the mower.

If you’re only doing an hour or less of leafblowing per client then you can just keep swapping batteries and have spares in the van/truck. For a really big job you might need more but then you could probably ask the client if you can plug your charger into their house to charge. I think a lot of people have outdoor outlets. Otherwise you could have a charger in the vehicle.

Power usage on an electric blower is very different than other power tools. With a drill you are not constantly revving it. You use it for a few seconds to drive a screw and then setup for the next one. With the blower it’s running continuously.

I have a drill than can run on a battery for most of a days work, while my leaf blower using the same batteries gets maybe 20 minutes of use, if I am conserving it.

I’m not a landscaper, so maybe it can be done, but I’ll believe electric is better when the landscaping companies start using electric tools, just like carpenters switched from wired to battery when it made sense.