I was watching half dollar auctions heavily last year on
ebay, because I was thinking along the same lines as you Chevy. My problem is that despite going through thousands and thousands of dollars of halves, I still haven't been able to build even one complete set, forget about condition- as I had to use whatever I found to fill some dates, like 79D and some of the 80s. I still need 78D and 88D to complete just one set for eventualy sale on
ebay.
Complete sets from 64-2000 minus the 70D, 87PO, 87D, sometimes missing 01P, and minus all proofs, no proofs were running $60-85 for the 70-71 coins, so roughly $1 per coin. In most cases these were AU-BU and included Whitman books (two at about $3 ea). Add in the
ebay fees, Paypal fees, and I bet you are down to 70-75 cents per coin. That was last year, and probably due to the silver climb, these sets should be well over $1 per coin now. I think you can make profit selling them this way in the current market, even with low number of JFK collectors out there, I think. Far better than dumping them back to the bank, where you only get face value. Making 70 cents on 50 cents is 29% profit- far better than the stock market even when it's doing well. I would do a test run on a 70 coin set missing 70D, 87P&D, 01P, do a BIN at $75-80 (silver alone is about $20 of it) and see what happens. I bet it sells- you could do it dutch auction style for all 20 sets and probably could have them all sold in a few weeks, or maybe less. I suggest putting the AU/BU coins in the hands of collectors!
Based on my own searching, it is very hard to find AU-BU JFKs from certain years, especially 78D, 79D, and many in the 80s. So if you got complete rolls for all of them in AU/BU, you've got a product that people will buy.
I don't know about selling them as a complete intact roll set what would happen as I've never seen it on
ebay. The uniquness of it could bring you much more than $1 per coin if you sell it all intact, and do a feature plus on it and dually list in JFK and collections/lots categories. I don't know. I probably would test the water with just one set, as you can always fill the roll set with more halves, if you decide to do the entire thing intact as a roll set.
I am in agreement with karrlot that it won't do you much good holding the rolls for 5, 10 or more years as I don't think they will move up all that much in price.
I also agree that you don't want to shell out money for 70D BU rolls and 87 P&D and 01P BU rolls, because I think the % profit dwindles, especially if you include 70D, which I think is overpriced.
FYI: I saw a 1000 BU coin US mint sealed bag of 1974 JFK halves go for only 818.88 (82 cents each). Probably all coins were at MS63
Good luck with whatever you do.