Interesting topic to me, I've spent a bit of time pondering this. Hobbies and interests can add a lot to life and they can also take a lot. Balance is the key but who has that?
My life has been ruled by a certain level of OCD and honestly, it's a mixed blessing. It has made me obsessively study things that interest me but they're not always the most important things to know, objectively speaking.
My Dad's next door neighbor and friend for 50 years is from a prominent, rich family that made it in the car dealer business of all things. He may have his other indulgences but he always drives the cheapest car sold at any given time. I'm not kidding, I think it's a Chevy Aveo or tiny Toyota right now. (Can't even look at it long enough to notice, it's that non-descript). In the past he had a Geo Metro. For some reason, he either hates cars or just thinks that they are a 100% waste of money. He's obviously not into cars at all and he grew up in a Chevy dealer w/ new 'vettes around when they were really cool cars.
There would be some freedom in not caring I suppose but he'll also never know the fun some of us have w/ cars and bikes. I guess the bottom line is always whether a hobby is adding more to your life than it's taking away in terms of time/money, which are the same thing unless you're absolutely loaded.
