It may simply turn into a death spiral, but it could be a fun project. It would only be taken seriously if we actually get it to work. Perhaps at each level of question, the resulting field would be narrowed.
Start with two questions and build on that.
Question #1 might be price range. If the maximum available cash is $200, everything above that would be removed from the final answer pallet. Then it gets hard. Is $200 better spent on a $100 helicopter and a $100 simulator, or on a $200 helicopter?
Question #2 might be a willingness to spend money on a simulator - and a willingness to use it.
The need for a coaxial, RTF FP, RTF CP, Custom FP etc would come later. I see this becoming a 3D matrix already. Gotta keep it 2D.
I must ponder.

Options need to be determined and listed, then the questions and answers need to lead us to a definitive result. I think we could do this. Each answer would remove some result from the list of possibilities. We'd have to get the questions in the correct order. I'm liking this already.

Solo