So here's what all my wheel shopping and research boiled down to.
$3k for this?
Or $580 for this.
$3k for this (no concave nor fender roll utilization unless with spacers)?
Or $580 for this, no spacers.
Breaking it down like that resolved the madness and gave me so much clarity to decide. If I ever need to replace a wheel for whatever reason, it'll only cost a buck fifty. If I ever get JDM wheels, I'll already have lightweight 22 lb. 18" tires ready to swap on. Sorry for dragging this out but I'm still stoked with my decision.