I don't proportion my system spending.
Maybe I did when I first started about 40 years ago and had to operate within a meager working college student budget.
I’ve spent what I’ve needed to spend at any particular time (within reason) over the years to get things to where I wanted them to be and did it one step at a time.
Right. Same here. Because the trick with an existing system is to find the upgrade that will get you the most for your money. Only when buying everything all at once do you need to budget that way. So this is a snapshot. Doing it this way without prices or even percentages eliminates a lot of detail. Still I think it is illuminating. A pattern may be emerging. Or maybe not. We will just have to see.