I've been training muay thai and jujitsu for 3 years. After 6 months of muay thai I started training full time, 6 hours a day (recently graduated, had a fulltime job for a bit and saved some cash) and at 1 year I went to train in Bangkok for 2 months. Everyone asked me "when are you going to fight", "what are you planning to do", and in all honesty I was only training for my own satisfaction and the fact that it kept me focused and away from partying and crime. I had no aspirations to compete at all.
2 months ago I had my first ammy fight in muay thai, and I'm planning to have a few more this year. My plans? None. I'm just trying to better myself as a person and in muay thai, and to see my potential.
If it makes you happy do it. Money is wasted everyday on pointless things, might aswell use one that is beneficial to your health and mind. Of course one could consider it a waste of time if someone trains all week, then gets hammered on the weekends pretty much taking 2 steps back from whatever progress they made, but too each their own.