The prettiest guns I own are a Beretta A390ST DU from 1991 in NIB condition
and a 1985 Remington 700 BDL in .22-250 in LNIB condition. The wood on either is spectacular. I also have a 2001 Browning Gold Hunter with great looking wood. All these guns from over a decade ago. Good walnut was a given twenty years ago, today it's a premium priced add-on. A new 2012 Browning Cynergy has good walnut but would have been considered less than Grade 1 in the 80s or 90s.
All my favorite shotguns or rifles are from the 1950-1990s.