Retail, even knock off vests go for $90 + shipping. The Rogue plates go for $43 and $56 respectively, with shipping and tax you are looking at $126. Finally the leather patch is another $9.50 from Rogue and at least $5 from a knock off. Overall, I estimated $200 retail, plus another $40 shipping. The used price was $120 which I thought was fair. Everything was in pristine condition. The 8.75# plates were still in the box from Rogue.
UPDATE: 5/2/2021 - Sold the 8.75# pair for $65 via Colorado Crossfit Community where a Chris Dudley was asking if anybody had plates they were willing to sell. Net for vest and 5.75# pair is now $55.