We love having a golf cart and would not go without one. We have rented from Disney on past trips, but are going to rent from Kenny for our trip in October. We are staying for two weeks and I just can not justify the price for the disney rental. We will save hundreds of dollars by going with Kenny. Of course that money will go to Disney in other ways, but I'd much rather have the golf cart, some souveniers, a few nice meals, etc. than just the golf cart.
As far as Disney not allowing him to deliver there, I can not see how they could do that. I know it has been discussed before, but there are plenty of other companies that make deliveries to disney property. People have strollers delivered to them, even though you can rent them from disney; people have motor scooters delivered to them, even though you can rent them from disney; people have groceries delivered to them, even though you can buy food on disney property. I love Disney, and trust me they get plenty of my money, but where does it stop when they have to dictate where I spend my money.