what are these wheels worth?

Could you guys explain to me which are the trim rings and retainers and the pre-71, but not 69 and e body usage? WHy is original worth so much but reproduction is worth-less?

Not sure what you're talking about retainers. The Magnum 500 wheel has a retainer that is used to keep the cap on the wheel. The rally wheel center caps used a screw through the wheel to secure the cap.

Trim rings cover the stepped ledge of the rim portion of the wheel.

The "Sombrero" style was only used in 70 and 71. According to the Mopar Performance catalog, the argent, light silver, color was used in 70, the darker color in 1971. Using car shows as a guide, the only color I've seen on an A-body was the argent. The "acorn" was used in the SBP only in 1972. There is no listing in the parts book for an "acorn" for a SBP A-body for 1973.

The SBP Rally wheel center caps were all 1 year only parts and only for the A-body. That and to survive 40 years make them valuable. The rest of the Dodge and Plymouth line used a BBP sombrero in 70 and 71. In 73 and beyond, disk brake A-bodies used a BBP. As a result, all Dodges and Plymouths could use the same acorn.

FWIW: At $80+ a pop for repro SBP sombreros, I'd hardly call them worthless. I haven't seen SBP acorns in repro for a while, so I don't know if they are still available.