I don't have one, yet. But my wife does and it allows us to ride together. I definitely expect to get one someday, and probably not that far off (2-5 years). Not to replace my regular bikes, but to augment them. I can still make any climbs I want to, so I don't NEED one yet. I think they are great. I don't think they are cheating. They are just different and the great thing is for some people, like for my wife, it is the difference between riding or not riding.
I've seen some nice road ebikes. I can definitely see myself getting one of those when the climbs on my regular routes become too much for me.