Wtf, I thought this thread was about euro tripping? Lets bring this back to life with talk of previous trips. I am actually looking into buying a two bedroom place over there, but am not sure so I am planning more visits. Place is awesome, and if you don't feel smarter when you get back, you're either doing it wrong or you forgot to pack your brain.
1. Would the property be an investment, a vacation home, or both? I assume you'll speak with professional on the matter as buying property overseas can be a tricky proposition (the relevant variables can and do vary widely between countries, even within Europe: what a country's rules are for foreign ownership, what entity would you want to own the property, taxes and treatment of rental income, etc.).
2. It isn't readily apparent to me what you mean by feeling 'smarter' when you return from a trip to Europe. Are you referring to the prototypical Western European countries? I assume so, since there are a variety of places where you'll feel dumber upon returning.
While it's true that new and interesting experiences stimulate the brain in a variety of ways and can preserve/enhance cognitive function, it still isn't clear in what sense you intend 'smart' to be taken. I certainly won't return and say, be able to do mental math any better. Maybe you really mean something like 'cultured'?