Good Wine Bad Wine

[GONZALET48]

Although I have enjoyed wine with dinner for many years I never gave it much thought beyond the dinner experience. I have however recently realized that I have accumulated a number of bottles given as gifts or just through purchases for events here at home. My concern is whether or not I have lost them by not consuming them sooner. I store them in a variety of wine racks that I have picked up here and there but wonder if I should have kept them refrigerated or not. Some examples I've yet to open range from some bottles of Robert Mondavi Cabernet Sauvignon 1996, Louis M Martini Cabernet Suavignon 1997 and Fraz Reh Liebfraumiltch 1995. Having just left it out in the racks over the years, do I have good wine or bad wine?