Are all layups created equal?

Offbeat question about layup. I was just wondering since the DS was produced by different boatbuilders over the years, do all the daysailers seem to be built with the same quality? My boat was built in 1977 and seems to be really solid. Ive owned a number of sailboats and Im in love with the solid nature of this one. I hope all the daysailors are of such quality.
Happy Sailing....Brad
Happy Sailing....Brad