Michel,
You sound like me. I was off work with health issues in late 2015 and needed something to do with my hands. After a 25 yearr plus absence I got back in to the hobby. I still had about 10 or 15 kits that I'd hung on to over the years...but since I've gotten back in to the hobby I've bought over 20 kits. But, a lot of them are figure kits I plan to use on dioramas, so they don't take up too much room. LOL
And yes, if I see something in a documentary or I'm reading about a certain subject it definitely influcances my buying. Right now I'm reading about the Pacific war and I'm getting the hankering for Marine Shermans, M3's, amtracks, etc. I already have quite a few Navy planes from that era on my shelf...so they kind of go hand in hand.
MichelR666
Sometimes it's as simple as reading a military aviation magazine, seeing a plane I like, and hunting down the kit.