I just put the Tablet out there as a quirky alternative which I personally feel is pretty good for Office work and browsing when you consider you can get these things from £60 it's worth thinking about. But for upgrading and running dual screens they'll never compete with a PC.
On your last point "If something in the tablet fails"
A single component in a PC costs about as much as one of these Tablets. Something to think about![]()
Yeah it's not a bad idea... Just don't think it is suitable for this build
Thanks though

Good idea to keep in mind for future if anyone asks me about a simpe 'PC'