All hobbies are expensive nowadays....
A few examples of 2 of my others
1) I play bass guitar(20 years experience), used to play in local bands a few years back, ok I have 2 basses, 1982 spector( hence my name) this is an original purchased back in 1985 for $600,expensive at the time, If I were to sell it today it would go for almost $4000+ easily, that was a good investment although I will never sell it.
Second Guitar is Peavey Cirrus fretless 5 string custom. $1500 ,you get what you pay for here and this is just an amazing Bass guitar... money well spent IMHO and gift to myself after my divorce from that money grubbing ex wife of mine.
Now strings for these go for around $25-45, and typically get replaced on a 2 month basis if I play a lot. 2 guitars $65 every 2 months. That adds up quickly.
Lets not go into the amp setup($4000) once again you get what you pay for. I buy quality/reputation if at all possible.
Not rich at all BTW ( working middle class if there ever was one)but there is nothing worse than a gear failure while on stage in front of a couple of hundred paying local music fans, it has happened to myself and cohorts at various times and let me tell you its not a pretty sight indeed.
Hobby (2) Fly fishing ... Back when I started fishing one could find a decent flyrod for around $100, NOW if you are lucky you can possibly find a second class flyrod in the $200 range.
I am going to replace all of my drastically worn out gear, both rod and reel, and am looking at around $800 easily, hell fly lines alone are in the $50 range now.
Hobby 3) Modeling I have a stash right now that may never be built completely, been getting out of the armor realm a bit and going into the IJN big boats, apparently just in time.
I purchased both the Aoshima Chokai ( a personal fave) and the Nagato with all its hull gridwork shortcomings. Money well spent as I will not be making any more of these large purchases for a long time. I will buy full detail kits for these ships as well, they will go under glass in a nice shelf on the wall. I will never sell them when completed personally, however after I am gone, they may fetch a nice price on EBAY should any of my family members( kids) need a few quick bucks. I have already told both my young adults this. And they shouldn't feel the least bit badly about the sale.... to them models are dust collectors, to some on EBAY they make nice displays, I would rather my models go to someone who appreciates nice work.
I don't drink anymore, I never did drugs, and I am not addicted to having the latest/greatest cars or huge houses like so many others. Its just material crap.
Hobbies get more expensive than modeling believe me,.... much more expensive. At least we have actual hobbies/interests. Some folks idea of a hobby is sitting around smoking pot and drinking beer and watching sports all day, never doing basically anything at all. I am going to guess most modelers could locate Iraq on the globe! LOL
I am a modeler because it forces me to learn new things and histories of the various subjects I model, it keeps life interesting indeed. So it is almost worth any price to myself.
So purchase what interests you or what you can afford at the time, one can get a lot of enjoyment out of a $30 kit learn some new weathering techniques you were afraid to try.
Thats really what its all about.