Remember that to my knowledge, Scooterbug runs the rentals at all So Cal theme parks and zoos, except USH and it is Scooterbug that sets the prices at each.
There is still a lot of inconsistency though, for example SeaWorld San Diego is almost $100 with no deposit refund. San Diego Zoo offers discounts for members. No idea why such wide price differences, but Disney didn't do the price increase, Scooterbug did and they have done a price increase for all So Cal locations, as I said to varying degree.
If you need a
scooter at
Disneyland, I can definitely recommend Select Mobility Scooters at
http://anaheimscooters.com
I put the full link per the currently requested rules as I have seen them, if that is wrong, please let me know.
They cost least, about $48 out the door for a single day, last all day, have more power and are more comfortable. They are located at the Best Western directly across Harbor from Disneyland. And depending on availability, they often offer parking for the same cost as Disney's parking for those renting from them and is substantially closer than the parking lot without a tram. You can also drop off after hours with them. And if you are staying at a local hotel, they will deliver.
As a comparison, Disney World prices are $50 plus a $20 refundable deposit for
ECVs.