I happen to be a philatelic - a stamp collector! I started collecting when I was in grade school... I joined stamp collecting club at school... And, well, I enjoyed it and been collecting eversince.
I don't understand what you mean about the 'wandering people'... They are different from the merchants in the game? Can you give an exact location, for example, of where you have encountered them? I'm curous as to what I can buy from them...