About 10 years ago, I traded about $1500 in vintage cards for over $400 retail in new unopened product at the card shop. I had done a lot of work on a collection that belonged to a friend of my father...He paid me with 5 cards hence the $1500...I was more interested in busting new product so I came home with 8 or so new boxes...
i had a prince fielder sterling auto/jsy and some vintage and it was about a $200 trade at a show soooo not too big but not bad i got 7 vintage cards for them 1 was a 1968? mickey mantle but also got rid of that for $100 in cash!