Talked to "Hal" at ace sports over my lunch break and this is what he told me
1. 1980 Royals WS ball- $250 retail, $125 offer
2. Thurman Munson Yankee's Ball- $300 retail, $150 offer
3. 1972 Royals ball- $100 retail, $50 offer.
Prices looked a little low to me so I will probably try and sell at least the Munson Ball for 500+ on Ebay.
I also posted something about these balls on a royals BBS and someone might buy the 1980 ball...so I got that going for me.