Interesting take, Jason. I also remember border checks, and I'm not sorry to see those gone.
One problem I see with the Euro is that it was not coupled with something more like a United States of Europe. (It is a bit like the mess we are making here trying to create universal health care without a government insurance plan). I don't think people in some of the countries understood just how much of their sovereignty they were giving up. You can't have a common currency without a lot of commonality. Greece and Italy have always gone their own way, and I wondered from the outset how that could work.
I think Spain's issues are different. They have, to a large extent, just been pulled down the same hole as the U.S., and I don't think anyone should make a rash decision there. OTOH, as a wine lover, I'd love to start buying Spain's stellar bottles in pesetas again.