The world has so much to offer: exotic cultures, historic landmarks, interesting cuisines, museums with so many artifacts and paintings, natural wonders, pristine beaches, beautiful old buildings etc etc etc
If I could I would travel for the rest of my life–wht better profession than that…
As for spending a lot of money–travelling is for your personal enrichment. Once the trip is over, the memories have been embedded forever; you cant donate them or sell them on ebay–they are entirely yours.
I had a luxurious honeymoon in French Polynesia; complete with the spa exerience, jungle excursions, kayaking, cultural shows, living in overwater bungalows—I do not regret it!