Car dealers are not enthusiastic about taking used electric cars on trade because for resale the new purchaser will demand new batteries and they are as you mentioned very expensive. So after 3-5 years you are stuck with the electric vehicle because the dealers don't want them on their lot.
Another point. With the electric grid system under stress now, switching to electric utvs makes no sense as you are just increasing demand on a system that is already in trouble.
I like the concept of quiet running and ease of maintenance. Motor will probably out last owner. But at what cost and will more consumers move to this option in the future.
IMHO the golf cart is the answer. Smaller, lighter and made for casual use. But for a UTV, electric is the wrong solution.