If that Costco socket set was the same quality as 1969 Craftsman tools it would cost a whole lot more than $100.
In 1969 I bought a fairly small Craftsman tool set for farm mechanics school. 1/2-3/8-1/4 inch socket sets with probably ten sockets per and the ratchets. Set of open/box end wrenches from 3/8-15/16 plus a 1 1/8. Ignition wrenches, Vise grip (Craftsman version, it was junk),10" adjustable wrench, screw drivers, hammer, allen wrenches and suitcase type tool box. Price was right at $100 in 1969 dollars. What would the same tools of the same quality cost today? Would $500 touch it, quality for quality?