In the world of underrated bargain bourbons, it’s challenging to beat the appeal of Old Grand-Dad. The shining star of Jim Beam’s “Olds” line of whiskeys, Old Grand-Dad, Old Grand-Dad ...

Others, not so much, but that has been changing over recent years. The latest to get an upgrade is Old Grand-Dad, which just released an expensive 16-year-old version of this bourbon classic ...