Yes Marc you raise an interesting point...whilst we are only talking about where to record a demo on this thread..it is obvious that some misguided people are under the impression that a recording "made in Nashville" is going to be superior in some way to a recording made elsewhere. That of course is utter nonesense.... a turd is a turd regardless of who produces it and a great record is still a great record. Nashville over the years has produced many turds as well a some pretty good stuff. Lest we forget there was a band called the Beatles who produced some of the best albums and top selling music of all time in Abbey Road Studios, London. Detroit, Memphis, New York, LA, Chicago, to name but a few and many other places including European studios have also contributed to platinum artists recordings. I fail to see this fixation with Nashville especially for genres outside country or a misguided idea that your Nashville produced demo will sell any better than a decent demo produced elsewhere.
I repeat what I have said before many times Nashville is not the centre of the universe and has not got a monopoly in producing great demos.

http://www.soundclick.com/bands/songInfo.cfm?bandID=687727&songID=5238055