After you've done what interests you, you move on to something else. I originally bought the tanks to drive around and shoot. Then I decided to upgrade the gun and tank for paintball wars through wireless cameras, and that has been a big project. At the same time I've gotten into detailing and painting the tanks and that's also immensely gratifying! So far I'mn at 10 tanks with my eye on two more for the near term. Will I paint and detail them all? I'd like to, but what about those paintball tanks? I wanted to set them up for shooting on a prepared battlefield, 4-5 tanks per side. Time will tell. My oldest just came back from a field trip to Washington DC, she's going to help me with the airsoft upgrades, I've been putting off the testing until she's available.