OEM tire/wheel packages are always expensive since they charge full MSRP.
It's unfortunate for those that don't know much about the options out there.
I've been looking at various car forums and Facebook marketplace ads for the last 3 months. Finally found a set locally for 20x9" Forgestar CF10s that weigh in under 24.9 lbs. Open box sale for $850/set (versus $1600/set new). It'll cost me under $2420 once all costs are factored in (wheels, tires, TPMS, lug nuts, hubcentric rings, mount & balance). Tesla seems to be charging well over $500/wheel for the 19" Gemini and over $600/wheel for the 20" Induction.