Love this! But I'm surprised not to see main Spanish cities on here. I took a short trip to Seville and was amazed how cheap everything was (I live in London).

There was an abundance of Airbnb accommodation, eating out was cheap and you could get a bucket of beers for 5 euros in many places. About the same as a pint in London.

I'd make this list a little more interactive, perhaps have a forum/comments behind each city. Could become a really useful resource.