Based on the title I thought someone had revived an old zombie thread from 10 or 15 years ago.
A quick Google shows that 600,000 ebikes were sold in the US alone last year, that's one every 52 seconds, so I guess ebikes are becoming slightly popular. I ride one to give my sore knees some assistance up the steeper hills on my weekday commutes, and one is actually being delivered tomorrow for my wife so that she can keep up with me on my hard and fast weekend rides (on my non-ebike) that make my knees sore.