I keep all the receipts from a project for return reasons , but I have NEVER once added them up at the end of a project. I never will either.
I could count to $12K worth of parts just on big ticket items when I finished an El Camino SS a few years ago
I am guessing I am around $8K so far in this truck.
It is cheaper than a Head Shrink and less trouble than a drinking habit! I am having FUN!!!