Are you saying that if it had more ram, the vendor would've updated the windows image? I don't see a connection between the out-of-box software being broken and the device having lower specs than a phone.
What I got out of this instead is that MS guarantees a "Signature Device" to just be free of any bloatware. I was also deceived by the devices in-store working perfectly well, but having been already fixed by store employees before customers could get to them.
Guess I know better for the next time, eh?