I think you're a hobbiest or you're not. Doesn't seem to be too many hobbies anymore. Seems today they only hobby is texting and driving, texting and walking, texting and doing nothing. Everybody seems to have something to do while having nothing to do. Kids today have no hobbies. They have Ipads and fads. They think Facebutt is a hobby.
We also have a here and now generation. I want it here and I want it now. Our economy and country is paying a price for the entitlement mentality today. Wait for or earn something is foreign to them. Hobbies are long term, take patience and dedication.
Seems to be a lot of non-thinkers out there too. Buy something. Usually alive(dog, cat, rodent, fish)then months later have to give it up due to no time because of job, school, girlfriend, landlord says no, have to move. Just long enough to screw up whatever it is they now need to get rid of. Those are all things a thinker would be aware of. Six months is not all that far in the future. Unless you're a here and now type.
This hobby is as expensive as you want it to be. And almost as cheap as it could be. I watch people buy high dollar stuff and sell it a week later to try some other high end gadget. I personally have gotten great things for free and others for very reasonable prices. Just because its saltwater doesn't and shouldn't make it more expensive. The planet is covered by75% of the stuff. Should be cheap. Anyway. Fish aren't all that much more than fresh. Depending again on what you're after. Chromis are nice looking fish. Beautiful at $3 each when you buy a handful of them. Firefish for $7. Another awesome deal. But then some of you buy the Purple guy for 3x as much. Proving my first two sentences. I can't tell the difference between the $5 zoa and the $50 zoa. And neither can some of you by some of the posts you've posted lately.
Also. Equipment. Should be cheaper, especially if used. Last time I checked. Anytime anything is exoposed to saltwater it starts to deteriorate emmiediately.
This hobby rotates from interested to uninterested to the next interested hobbiest. Until they become uninterested, busy or whatever. I'm 49 years old and have had aquariums since second grade. If it wasn't glass it was a bucket of water with something swimming in it.