Really? How old is your electric blower? If I look at current generation gas and electric leaf blowers for sale at Home Depot at similar price points, I find surprisingly similar specs in terms of velocity and CFM.

I assume that what’s going on is that the actual electric mechanism is vastly simpler — the motor is quite small, so you put it where you want it instead of worrying about belts or other power transmission devices), and there’s no need to handle fuel. On the flip side, batteries are fairly expensive.