I'm with Wine Woman.... you'd better get there super early and grab it right away. I love going to those sales but you have to know what you want and get it or you'll miss out. There are lots of people that know what a featherweight is and will snatch it up in a hurry.
I have found 2 2-drawer Coats and Clark spool cabinets this winter at sales like this but if I hadn't picked them up and taken them to the counter right away, I wouldn't be enjoying them in my sewing area today.
Go for it!! If I were there, I'd be grabbing it up for that price.