The question is, what will the (any) bike be used for? For instance, a light weight racing bike that would be perfect for, say RAAM, would be less than useful for, say, a loaded tour across the country. Different problems, different solutions.
To address the electric bike issue specifically, electrics have a high "hopability factor." You can just hop on and go. The batteries are heavy, yes, and the bikes themselves tend heavy. This slows a person down, but is less a factor on flat roads. Once you are up to speed, no matter what the bike, maintaining speed is not a big deal. Hills, on the other hand. . ., but that's what the motor is for. With exceptions, the people riding electrics aren't vitally interested in land speed records, anyway.
**Rant Alert**
The assumption that annoys me is that the only reason for getting a bike is for sport and for getting in shape. It is possible to get on and ride for the pleasure of spending a day outside at a leisurely pace. Or to go to the store for a small purchase. Or to meander over to a friend's house for a cup of coffee. Or go out to a nice dinner with your love. Relaxed transportation, in other words, can be a valid goal. Getting in shape doesn't have to be a factor, though it can be a nice side effect.
/rant
shorter me: Figure out what you want in a bike first, then go shopping. There is room for electric bikes, if not in the same space as other bikes inhabit.
One other thing. Where is it written that a person is only allowed one kind of bike? What would be the problem with an electric for general transportation, a LWB recumbent for touring, and a lightweight racer for (duh) racing, or any other mix that you can think of? Fit the solution to the problem.
Give big space to the festive dog that make sport in the roadway. Avoid entanglement with your wheel spoke.
(Sign in Japan)
1978 Raleigh Gran Prix
2003 EZ Sport AX