Same boat as you. Haven't rode a bike since college in the late 80s, ruptured my Achilles at a company picnic, and gained weight from being too scared to participate in any exercise other than walking around the block. I did purchase a pedal bike back in 2014; but, hills, wind, winter chill, and summer heat really limited my riding days.
I've had my his/her Radrovers for about a year. I liked riding so much, I decided to work commute 3-4 times a week year round. I only skip riding if there is rain, snow, or winds of +20 mph. Add in the mileage from my fun rides and I put over 3400 miles on my Rovers in a year (miles split between both rovers because the wife doesn't ride as much).
For me; it is about how you use the tool compared to what tool you use. I've could have done the exact same amount of riding on a bike 2X-4X the price just to end up in the same place a year later (with less money in my pocket). Rad, Volt, Sondors, and Teo fat tire bikes have the best prices for those wanting to dip their toes into the ebike shallow end of the pool.