I see all types while touring, from sandals on flat pedals to expensive clipless. I'm at the low end of the range, with old toe clips (chrome with leather straps, even) and running shoes. I put Superfeet inserts in the shoes to stiffen them a bit. I enjoy taking breaks from the bike by taking a walk every few hours, so the equipment fits my style. Some cyclists spend more on their pedals and shoes than I did on my entire bike. It really depends on one's touring style.