Are you looking at a beach cruiser, mountain bike, road bike, cargo, or comfort bike?
I have two 750w rear hub Radrovers with PAS 0-5 and a throttle that is about 60 lbs out the box and maybe around 70-72 lbs with my accessories mounted (rack, rack bag, suspension seatpost, lights, fender). It also has a very comfortable upright riding position for long distance.
I wouldn't want to ride this bike without PAS because the extra mass, tail heavy design, and increasing wind drag because of the upright riding position the faster you go. I can only ride this bike without PAS at very low speed of 6-12 mph on level ground with no wind, if I have a stiff tailwind, or downhill using gravity assist. I don't think rear hub motors on average are as efficient and you will not get the same range as mid-drives. I never riden a mid-drive; but, they seem to be lighter in overall weight on average, more balanced on weight because motor/battery are low and center mounted, larger gear ratio, more gears, more advance PAS, can apply more tq longer on inclines, and front/rear tire quick release (if you need to toss in the back seat for transport).
You might find hub drives bikes can be cheaper compared to mid-drives versions. I was able to purchase two Radrovers for the price of one mid-drive. I sometimes take my wife's 7 lbs battery when I need to ride +30 miles as a back-up. I've gone as far as 36 miles on a single charge and 2X that range with the spare battery. Hub motor can also be very easy to fix, upgrade, or convert to a mid-drive ebikes for a longer road life.