Not sure how it goes for North Americans' purchase power, but affordable and thus common ones in Việt Nam have rather poor range (~40 km brand new) and we have no public infrastructure for charging so they're usually used for urban commute only. Batteries need to be changed every few years and as recyclable as any other Li-ion ones (optimistically below 50%, but closer to 0% in reality). They're pretty much electric cars that are more energy efficient but worse range.
Personally I'd prefer ebikes which use less rare-earth resources and allow one to pedal even if the battery runs out, or just a purely mechanic one on relatively flat terrains. That being said, if you consider the obesity rate in North America, neither is a realistic option.