I agree that having more than I can/want to finish makes me a little uneasy. I actually have several of my brother's bikes that I didn't intend to own. His k4 is one I won't sell, he bought it new, and I have a long history with it.
I had planned to sell a K0 for money to buy a large Pontiac rotating assembly and a Torquestorm blower.
Now that I have the turbo drag bike and the RC 836 custom bike I have a problem.
My wife shoved a cb750 for sale ad in my face to see if I wanted it. I do not. It was a test.
I even saw a rear swingarm/wheel and fork/wheel assembly for an 80 gs1100 cheap on facebook marketplace and I don't feel the need to buy it.
I think the kz1000, F'nK, 76 750F, 72 big bore cb750 (I rode with this bike in the mid 70's) maybe the gl1000, the bitsa 71 K0, a titled K3 frame that provided the current engine in my diecast all need to move along. The total of keepers, bitsa bikes and goers = 14 bikes.