First, I know very little about NES........

I bought Maniac Mansion for NES today. I remember playing it on my Amiga a "few" years ago and since it was cheap I took it. The thing I didn't know was that it was completely in Swedish. Cool, or should I say crap. Some words sounds like sh*t when translated. Anyway, I searched the net and found some faq which said there were two other games in Swedish. One hour later I'd find out that there were some games that only existed in Europe.

So my question is; are the Swe/Scandinavian/European games collectible/valued for you Americans? My guess is that the never released games are, but the language only games only applies to the die hard collectors. Or?

Thanks for your time!

/CC