I build because I LOVE it. I am retired, and I can get lost in a build and stay very happily in the shop for long perids of time (sometimes I watch the sun come up out there). There is just so much satisfaction in watching a bundle of sticks come together, not to mention the reactions of friends who come in and marvel at these things. And the single one thing that motivates me the most is that, if you look at the half dozen or more models hanging from the ceiling out there, you, or anyone, could accurately pick out the exact order of the builds as each one is better than the one before. I can see real progress in my abilities, not only in the construction but the finish as well. Sometimes I wish I could take some of the older ones apart piece by piece and start over, but there is always that next kit waiting under the bench. If I could figure out how to ACCURATELY cut wing ribs from sheet stock, I would build from plans, but I have tried from time to time to cut ribs and am not satisfied with them, so for now, it will be kit after kit.