Haha, I know I'm terrible. OK so here's why.
1. You say buy the camera you know you will end up with, well as you know that camera doesn't exist. Also, my wants needs change over time. In terms of the final image I prefer FF for a number fo things (mainly due to DOF and '3D' but I get tired of the weight and bulk (even the mirrorless FF) and as a result it sometimes puts me off taking it, and I think in part this is why I"ve lost my mojo, I like the 'idea' of it but the reality is a chore. Even my EM1-II with 12-40mm can be a nuisance at times, hence why I've looked at 1" compacts and smaller/light mirrorless alternatives (eg X-T30 with 15-45mm PZ and Olympus EM10-II with 14-42mm EZ).
2. I genuinely like playing with gear and trying other things out, learning how they all work etc etc. I don't have kids etc so can afford (within reason) to do this from time to time.
I'm under no illusion that it will help my photography, or will be the holy grail