When I have money, I buy models. When I have time, I put them together. Here are two old soldiers. These are the Matchbox 1/72nd scale Me 109 fighter plane. A very easy styrene plastic kit.
I got them a while back at a kit collector show. They have been sitting around waiting to be put together for at least five years. I really liked Matchbox kits. They always had at least two colors of plastic, sometimes three for the bigger kits. The instructions were easy and the planes had pilots.
This one was a rather odd yellow plastic, you can see where I painted the inside gray. The yellow was so thin and translucent that you can see the dark spot where the paint is located. As you have guessed, I generally assemble my planes and then paint them afterwards. I often paint them in a large group. I have over two dozen Me 109 airplanes, and I don't think a one of them is finished. Maybe later this year. I am working up to a big building spree of Me 109 aircraft by Heller. I have about ten of them to put together.