Al,
Our trusted friend and moderator, Knarfeng, has hit the nail on the head (tempered nail, no doubt). The pre 85 119s were of the 440C family and frustrated some folks who just quite could not adjust to sharpening their hardness. The new models are more easily sharpened and will work well. There is a sort of cult status afforded these old 440C Buck fixed blades when discussing tempering and with modern diamond hones you should not have a issue.
If I were you I would look for a used but good one with no (date) symbol stamped after the model number on the tang. This will make it of the same era as the one you like. OR I would check out 119 info and the auction site(s) and pick up one of the specials which are modern era steel but have wood, bone or stag handles. Just to be different I guess. Some dislike the modern sheaths, so if your knife came with a flap over sheath and you like that style, watch for a good old one for your new knife. It may take you a little effort, but not impossible....
I also would say go over to the Buck forum and search 119s to bone up on your knowledge.
300Bucks