Straight answers
What if the recommendation is wrong for me?
Then ignore it. It is three questions, not a diagnosis. If the suggestion looks off, email me a description of your week and I will tell you which of these actually fits, including telling you that none of them do.
What if I can't afford the one it suggests?
Buy the cheapest kit instead and see whether the approach helps you at all. The $39 deck teaches the same habits as the $750 build; it just makes you do the work. There is no wrong entry point.
Do I have to buy anything?
No. The guides are free and complete, and for a lot of people they are genuinely enough. If the answer for you is 'read the free thing first', the tool will say so.