Three words, musical instruments insurance ,the fee is higher but in case of any damage to the gear your covered.
Many companies who rent out high end outboard gear,PA stuff,etc... use it.
The price of rent per day/week has the insurance built-in.
One could make a lot of money in some countries where this service is needed but not available,
On the other hand there are plenty of studios who sell studio time and own a nice collection of keyboards, I'm not sure i would be willing to pay 60-70$ an hour just to record synths.