I'm not big into building. I'm not always the most social person, and my job more than fulfills my people encountering needs. I enjoy the solitude of flying alone. I love watching the aircraft cut through the air. I also really enjoy taking pictures and video from an aerial platform.
Most recently, I have fallen completely in love with flying FPV.
This is something I've wanted to do for years, but failed. I've thrown good money after bad in several aspects of the hobby, but I finally found something that every dollar invested, has given me ten fold of enjoyment in return.
I can also "justify" the money I spend on RC by realizing that I don't drink, I don't smoke, I fly RC.
At the end of the day I still have something to show for my money spent, even if it's broken... I haven't literally pissed away, or burned my investment (unless a lipo took a bad hit...). I always find it interesting when my friends who will have a trash can full of empty liquor bottles on Monday, say they can't understand how I can waste so much money on my hobby.
More often than not, it makes me happy. One thing I've learned by watching and listening to miserable people, is it's important to find your own happiness, because it's too easy to dwell on the things that bring you down.