[makeitdouble]

Depending on your hobbies that will require enjoying buying new things, which is not a given.

For instance if you're into photography, better gear can give more pleasant results. But if you already have a decently good setup, buying something better will require extensive research, comparison, probably a trip or two to a store to see the gear in person, potentially rent it for a few days to see how it handles etc.

If you enjoy the whole process you'll be happy to buy new gear, but if you only cared about actually taking photos, the time you spent to get incrementally better gear might not pay off in actual enjoyment of the hobby.