Is mobile storage a good investment? Like PODS.?

I am opening a mobile storage company and I am curious as to what the public thinks.

I don't know how good the return on the investment will be, but I think it is a pretty good idea. My parents used PODS when they sold their house, and they still have everything in storage while they are out of state. It was nice to have the POD stationary right outside the house and be able to move everything into it gradually. And they chose one big enough to fit everything, so there was no having to load up a truck, take it to storage, unload it, and go back and do it over again (that part was extremely nice). The only issue I see with it is that you have to give 24 hours notice if you need access, because they have to find the pod in a stack and bring it to ground level. But that's not even an issue if you know ahead of time that you'll need to access it, and it's a small price to pay for the convenience of being able to load it up and leave it there, rather than load a truck and unload it again into storage. I do have to say that I don't know what the price of rental is; some people may be willing to do the extra work or make more trips if a regular storage unit is considerably cheaper. It all depends on what is more convenient to the buyer, and how much they have to put in storage.
I have seen the PODS around a few places though. I think the idea may be catching on...?

Quite frankly, pods are very expensive and most people want to be able to store their goods for long periods of time, not just when moving. I prefer good stable very secure self-storage.