Frogs? SPD's??

[Eden]

If you are not riding competitively there's probably little reason to "need" road shoes. The soles tend to be stiffer and the pedal platforms larger for better power transfer, they tend to fit tighter too. I never had any until I started racing. Some people prefer larger pedals/cleats than you can use with mt bike or touring shoes, because they get hot spots from little cleats. Some people just prefer pedal systems that will only fit on a road shoe.