Is the difference between cloud storage provides about free space? In a word, no. I wrote about the cloud storage wars and potential bubble here:
The cloud storage wars heat up
4 reasons cloud storage is not a bubble about to pop
Each of the providers is doing their part to drive value into their respective solutions. To some, value includes the amount of ‘free’ disk space included. Just today, Microsoft upped the ante by offering unlimited free space for their OneDrive and OneDrive for Business solutions.
Is there value in the amount of free space? Maybe, but only to a point. Once they offer an amount above the normal needs (or unlimited), the value becomes a null. I do not have statistics, but would hazard a venture that ‘unlimited’ is more marketing leverage where most users only consume less than 50GB each.
Looking beyond free space
Once a provider offers unlimited storage, one needs to look at the feature/ functionality of the solution. Not all solutions are built the same nor offer similar levels. Enterprise features, integration, ease of use and mobile access are just a few of the differentiators. Even with unlimited storage, if the solution does not offer the feature you need, storage value is greatly diminished.
The big picture
For most, cloud storage is about replacing a current solution. On the surface the amount of free storage is a quick pickup. However, the real issue is in the compatibility and value beyond just the amount of free storage. Does the solution integrate with existing solutions? How broad is their ecosystem? What about Single Sign On (SSO) support? How much work will it take to implement and train users? These are just a few of the factors that must be considered.