2. I occasionally purchase them?

6. I only buy KITs if they do something that I want?

I would also add that of the kits that I have bought (mostly over 20 years ago) I dont think I have built one EXACTLY as dictated by the instructions. They usually get "tweaked" slightly so that they do exactly what I want.

I may have assembled the odd one as per the instructions initially but then modified it afterwards.