True Costco will often have good tool companies allow the use of their name for promotional reasons. Snap-On does this with certain flashlights that Costco sells. The large cheap tool sets that Costco sells also use Crescent brand name, but are a far cry from the real Crescent tool as made by Cooper. Sams Club sells another large tool set using Channellock's name. Personally I think it's severly detrimental to these quality manufacurers to allow these warehouse marts to use their name on cheap chinese made tools. Because when they fail, all the customer will remember is the name, not the fact that it really isn't that specific company who made those knock-offs.
I think Crescent tool are about the same great quality as they've always been. Maybe the chrome plating on the current tools could use some quality improvement, but that's about it. Cooper hasn't done to Crescent yet what they eventually did to Diamond Caulk Horseshoe and Tool when they aqcuired them.