I feel like the common thread through all of these, with the exception of travelling, is that they aren't really fulfilling. Is there really a difference between feeling fulfilled and feeling successful? And it is much more fulfilling (and cheaper) to cut back on the materialism and focus on experiences and people, IMHO.
Yes, for most people. "Fulfilled" is usually used to refer to vocations that are personally satisfying but not particularly financially rewarding. "Successful," OTOH, is usually construed as involving status. Ergo, many people chase the things that they see as markers of status so they can feel successful.
Two major problems with this thinking:
1. They have it bass-ackwards: the fancy goods are the effect, not the cause. Before the advent of easy credit and "buy now, pay later," that VP down the street drove a Mercedes because he worked his ass off and saved his money for years to pay for it. And that car was probably pretty satisfying, because he knew he had earned it. OTOH, if you chase the goods and short-circuit the effort/investment in yourself and your work, you are buying only empty markers, not the "success" that led to them. So of course whatever you buy with that money is unsatisfying -- you haven't put in the work to earn it.
2. Wiser people understand that "successful"
is the same as "fulfilled" -- it's about doing work and spending your time on things that you enjoy, things that support the values that are important to you, that make you a better/more complete person and make the world a better place. None of which has a damn thing to do with "stuff."