yeah, older ones are worth more, newer ones not so much. look on ebay "completed listings" to see how much they sell for.
If they are in that good of shape you will probably be getting pm's on the early ones. A great resource for what cars actually had on them and how they looked rather than just someone's opinion of how they looked.
Nope, they aren't worth anything - put 'em in a box and send them to me, I'll even spring for shipping just to help you out!
magazines are like any anything, only worth what ya get for 'em. yes, collectors will pay big for perfect special copies. but, average guy is not going to give much. with reproductions of early Hot Rod mag. I had full collections of mags, some with famous autographs, that I basicaly gave away because no real buyers. I save very few now. read 'em and tear out important articles. then sell for 50 cents at swap meets.
The Jalopy Journal
