Is great that a friend is actually going to travel with you! Made me remember those times where I got into groups of backpackers and a lot of people joined and planed a trip... and in the end I always ended going alone (everyone else always backed out), oh well.
Travelling for the sake of travelling... mmm I think we don't need a reason for travel, if you like what you're doing and having good times it should be good. Here's a phrase for you "Traveling is the answer, no matter what the question"