As I stated earlier, I tried out one of the Giant offerings on a lark- the LBS asked me to do it. Who am I to deny a request to take a bike for a spin?
I have considered e-bikes before, primarily due to the distance I have to cover. 52 miles r/t using the most direct route and traveling by car.
The reasons why I didn't invest in one:
-Initial cost is rather steep.
-The system didn't have the range. IIRC, they claimed a range of 75 miles on 'eco', but that's for a rider who is like 160 lbs. riding on flat ground. Me and my gear easily topped 250 at the time and there are hills around, so I would have had to finish the trip in both directions w/o any assist.
-A lot of times, I don't even work enough hours for the thing to have recharged fully.
-Would have had to buy another charger to keep at work.
-Ebikes are not allowed on the local transit buses.
Another reason is when I last considered them, to have any range whatsoever, the batteries were mounted to the sides of the rack. That greatly reduced the utility factor.
I don't begrudge those who use them.