I get the incremental change thing. I just couldn't afford it.
I did the koni's and springs (and bump-stops) all at once on my car mostly because it was 2-3x more work/$.
I am proud i did the suspension upgrades, but i never want to do it again. I will say that most of my difficulties were due to a lack of adequate tools and a lift.
I recommend that you consider the install costs as part of you decision. This is only in regards to the springs/shocks/bump-stops.
The anti-sway bar replacement in the front takes some elbow grease but nothing like dismantling and reassembling your springs and shocks.
Good luck with you project. you will be happy with whatever you decide. and good luck with you research ( i knos i spent what felt like hundreds of hours deciding how to upgrade my ride