I live on flat land so I really don't get the whole eBike thing. But if I had one or more formidable hills to climb on the way to work I guess I could see it. As was stated above by ILTB, the weight of the things almost necessitates special parking privileges. My house is 6 feet off the ground. My conventional bikes are enough to schlepp up and down the steps several times a day. And the bike I use for utility errands and appointments is CHEAP in case it gets pinched.
My other issue with eBikes is they are too fast for the bike lane and too slow for the auto lane adjacent to the bike lane. Many of them are limited to 20mph but some will do 40mph. I don't see many where I live so not an issue so far. I believe the price will limit the sales of these things.