So because Greece and Portugal are struggling, then no-one has a hope in the EU? Not quite sure what your point is? My point is, if the majority of people in Wales and Scotland want to stay in the EU, but the UK leaves, there's gonna be calls for a break from the UK as the people there are getting stuck with a situation they have democratically shown they do not want.
World has changed a hell of a lot since before we joined the EU in 1975 - especially since the post 9/11 security clamp downs. Are you so sure it's gonna seamlessly shift back into the way it was back then? Point I'm making is, if I want to book a week away in Germany now, I could book a flight now and be on my way by the time the sun is up. A lot of that is down to the free movement as an EU citizen. Whether or not that's gonna be possible if we leave the EU is completely up in the air. Other EU countries won't be under any obligations to make it easier for us anyway.
As I said before, I'm fairly biased on this, I have plans to move to Germany again in the near future. Leaving the EU will put a spanner in the works on a personal level I guess.