They say that once you start travelling, your list of places to see only gets longer, not shorter.

This is absolutely true. I started backpacking more than 20 years ago and my list of places to go next just keeps jumping up in volume. This is a good thing though right? It would be a shame to run out! For me the only places I wont go is the places that the masses do go to and this is based almost exclusively on those places generally being out of my budget.