what do with my 8 track tapes

What to do with the 8 track tapes I have laying around ? Yes I still have some 8 track tapes. Now if I can find a old 8 track player at a low cost that still works then I can play the tapes. 8 track tapes were I think one of the first tapes out in the market to compete with the vinyls record of music playing . Now When I get time I might go to ebay do a search of each 8 track tape and see what people are buying them for this can tell me if they are worth any think in the antique classic market . As right now since the 8 tracks are not by me I do not know which artist is which one or I list the name of the 8 track tapes . Not sure if 8 track will ever come back but as you know by now records and record players are making a come back. Yes vinlye is back with out the scratchy sound I think .But for me I can use a record in a car so I stay with the cd or what ever replace that soon we might have are music on flash drive memory stick or do we all ready have that ? I am not sure if we do have that or do not have that.Now back to my 8 tracks tapes should I keep them and see if their value goes up or sell them no matter what price I get . If I have to sell them I got to figure what the shipping cost will be to ship the 8 track tapes. What do you think? keep the 8 track in case I find a player down the road or sell them now to have some money in my pocket Ok have a fun day today.