[greenyoda]

I'd find this a more appealing idea if the modules were built to an open, standardized interface and you had a choice of many vendors when upgrading your machine. However, by buying the existing system, you'd be locking yourself into only using proprietary modules that are available from the original vendor.

I'm also not sure what the value proposition is here. Let's say I'm the kind of user who doesn't know how to add RAM or a disk drive to my existing machine. Wouldn't it be cheaper to pay someone a hundred dollars of labor cost to do it for me than to buy this expensive hardware? Upgrading a machine is a fairly rare occurance.