There is quite a bit of pain from simply moving your body long distances. The reward must make up for this.
Beautiful views are the least rewarding part, those moments are fleeting, and there are plenty of more beautiful things you can see on your phone without leaving your bed. This is basically the goal of Disney, throw in some short physical hedonism from rides, and that is the experience. Only thing I'm missing is that having your own children smile will cause some intense pleasure thanks to biology.
However, call me a Platonist, but the best part of traveling is the knowledge. I remember physically feeling awful during my travels in Europe. The transportation was long, the food was so small portions I felt ill (until I learned you could get tuna sandwiches everywhere[Weight lifter walking 12+ hrs/day]), and outside the Sistine chapel, I had seen these views before. However looking back on it, and my favorite moments was learning about the history and learning about the area. Being physically able to walk from Aurelian walls to the colosseum and the forum was enlightening. A history book couldn't teach me this.
Traveling physically hurts, but it doesn't mean it wont be looked back fondly.