+1 Some people really seem to like riding in large groups. I never really understood why, but to each his own... I like riding by myself best. Solo trip cross-country? Yes please! An excellent opportunity to "get away from it all" - literally. I have a buddy who I've ridden all over North America with. I really like riding with him - we are both really familiar with each other's riding style and have a pretty good idea as to how each other will react under different riding/road/weather conditions (no "drama." ) It's great to have someone along on the trip to discuss/share the day's roads and sites with! Riding with two other riders is OK but the dynamics of the ride start to change significantly. I find that you have to worry more about the logistics of the whole group (obviously) and find it harder to concentrate on the road itself. More than three riders in the group? No thanks - as someone mentioned previously - that's a parade.