Storage?
Have I missed something, since when has vSAN been storage? vSAN on its own is nothing, it requires hardware & critically disk to deliver anything. It is simply software, in this case enabling Software Defined Storage. In other words, buy the cheapest possible disks and then spend a fortune turning it into an array with some software.
As technology has moved on many enterprise features are now trickling down into modest arrays making this type of product more questionable, particularly at the current costs. Software Defined Storage is where the likes of VMware are trying to obtain complete buy-in and control of the entire tech stack to protect their revenues.