what if it is not "the best possible workout" you crave, but lap after lap of your favourite trails that would normally be impossible on your current non motorised option to acheive..(due to what ever reason)
for me, I ride to have fun...this seems to be a concept lost on many, and more a 'win at all costs' culture......I'm fat, I'm old, I'm broken, but I like to ride, and an Ebike allows me to knock out laps of trails where I would normally not be able to complete a sustained session....
I don't like road bikes, I think they are flimsy and poorly built, and the wheels buckle easily when jumped, But I ain't about to buy one...but people still get a great amount of enjoyment of riding on bitumen sucking in car exhaust fumes, good on them..