While it's true, battery power density is no where near gasoline, you have to assess your needs. Think about it, how many times do you put your mower, trimmer, tractor, chainsaw, whatever away with fuel in the tank? Like always? I can't switch to a battery rider because I mow too much ground to use batteries, at least with today's technology. A blower, chainsaw or push mower, yes, I can live with an hour or two at a time because I don't mow or trim for longer than that. Even though I mow 5 acres, there's very little trimming to be done whether it be weedeater or push mower. It is so nice to not have to deal with oil and gas, and I can flip my push mower over and clean the deck with no worry of pouring oil out. It folds up for winter storage, what's not to like. Also, it has the power to mow tall grass with no big hassle. I know the battery blowers and chainsaws are not there yet, but that's simply a matter of time. Think about it, there was virtually no market for battery blowers and chainsaws just a few years ago, and now that's all changed, and I'm sure you'll see some big time advancements in battery tools.