Is it worth travelling to sterile, first world countries? (Srs)

Coming from a country like the US, are you really going to have a unique, memory building experience if you travel to the rest of USA, Australia, Canada, UK, Western Europe etc?

I’ve been to Thailand and Indonesia, both of which are completely different to the first world and were well worth the experience. Plus tropical weather, cheap massages, great nightlife and easy sloots in holiday mode.

I can’t see how going from one first world city or country to another would be much different and worth the squeeze though. Any experiences? Am I rite misc?