My friend and I went on a 5 day tour 2 weeks ago. We started in San Bernardino, went through Joshua Tree, and ended up in Palm Springs. We were carrying all of our camping equipment and food with us so we were riding kind of heavy. It was tough but very fun, this was done on fixies with no extra cogs or chainrings.

You tour because it's fun, for no other reason but that. If you want to do it, do it.