I'm going to buy a NewAge storage cabinet system from Costco. Anyone have any experience with these? They come assembled and are fully welded units?I can get a 7 piece set for $999 ($500 off right now) that is made of 24 gauge steel, or I can get a 6 piece set for $1,999 that is made of 18 gauge steel. This set has two inch wider wall and base cabinets, a nicer wood top bench, and a 6 inch wider tall cabinet. Should I spend the exter grand for the 18 gauge system????