So looking around on ebay I have noticed Craftsman Professional wrenches have pretty good resale value. I have metric and SAE. They are my best combo wrenches currently, but I'm seriously considering selling my metric (8 to 24mm) and SAE (1/4 to 1-1/16) to fund an upgrade to Proto (or Wright?). The metric wrenches look like they would bring enough to pretty much swap to the new wrenches. The SAE don't look like they bring quite as much but still would get pretty close to paying for the new wrenches. My wrenches are in pretty good condition since they don't see much use - I tend to reach for my Craftsman RP wrenches more - so should bring a pretty good price. Would you sell or keep? I think a set of Proto would be a nice upgrade (I have some proto double box end wrenches - great!). Also if you would sell and upgrade would you prefer Proto or Wright? Thanks.