OT -- Liquor find

All,

My Father-In-Law passed away in late October, and my family and I spent the Thanksgiving week up in Central Kentucky with my Mother-In-Law.  While we were up there we were going through his office (he was a collector of lots of different things) and we found some old bottles of liquor.  Three bottles caught my eye. The first is a 750ml bottle of 95.5 proof Pusser's Rum with which my wife said she remembers seeing for as long as she can remember.  It has paper tax stamp in tact with a date of 1968.  The second is a bottle of 8 year old Wild Turkey 101 proof.  It too has a paper ATF tax stamp on it but there's no date on it.  However, if you look in the picture, you can see that some of the bourbon has evaporated away.  I'm guessing that it is as old as the Pusser's.  Lastly there's 375ml bottle of 112 proof Wild Turkey Rare Breed dated 4/25/94.  The other bottles seem to be pretty run of the mill.

So, I guess my questions are as follows:  Are there collectors out there willing to purchase old bottles like these?  Do they age in the bottle like a fine wine?  Should I be concerned about the Wild Turkey evaporating away?  Or should I enjoy them and toast the memory my FIL? The funny thing is that I never saw him drink a drop in his life.