So what is this set good for? I use these cards as fillers for my vintage sets until I can replace them with originals. Once I've purchased the originals, I place them in the back of their respective binders like the rest of my insert sets (in this case, 1997 Topps). I treat all of the Mantles as 1996 Topps cards for the purpose of keeping the set together in one binder.
Some of these cards I will never replace--like the '51 Bowman Mantle or Mays. Some I already have complete reprint set for--like the '52-'54 Topps cards. These commemorative sets really enhance both my vintage collection as well as my modern insert sets.