Disagree with the notion that buying used tools does no good for American jobs. It absolutely, positively does. Just a bit less directly than buying new. Forget where Garage Sale George spends the money, here is how it does it.
1. Resale valve. We may not thing much about it, but it comes into play. A guy may never plan to sell his tools, but he knows they have value as collateral or whatever. He is more willing to spend more on them than he would be if they did not hold any value. THat means he is more likely to buy American.
2. Any time the substitute good to a CHinese tool is chosen, it is one fewer Chinese tool on the market. That is voting with one's pocketbook. And you better believe I refuse to buy anything from Sears any more, even if I need a cheap tool I plan to throw away. I absolutely want their sales to go down as a direct correlation to their offshoring. IF it does, they and others like them may reconsider their decision to leave the US.
As for me, I have a bunch of old Craftsman stuff. 1/4, 3/8, and 1/2" drive standard and metric, shallow and deep, 6 and 12 point. Multiple sets of wrenches. Pliers. Etc. That stuff is now at a vacation home, and has been replaced mostly with SK stuff, except Knipex pliers, and my 3/8" drive torque wrench is Facom. I do have a set of reversible ratcheting stubbies that are Taiwan made WIlliams. Easily 95% of my tools are US made. Sheesh, I have several impact and stuff lie E-Torx that are still in the wrappers. I've been waffling over a set of long ball tip metric hex sockets. The SK's are $105, Sunex is $44 (includes both ball and regular tip), and I've unfortunately had bad luck with SK's hex bit stuff. I really want the USA ones, but almost 5 times the cost is really hard to justify.