I currently ride with tennis shoes and pedals with cages on my road bike, which are very comfortable.
I would not mind being able to cover more distance with less energy. I only have about $100 to spend on road bike clipless pedals and shoes. Will I get a big step up in efficiency moving to a $100 pair of clipless pedals and shoes vs what I"m using now?
I usually ride about 25 miles at a time but may start tackling some longer 35 to 40 mile rides soon.