I'm still using a North Face UL Down bag I bought some time around 1991. I think it retailed at around 500 or 600 at the time and I grabbed it at a season clearance for 300. At the time I thought I was an idiot for spending so much for a bag. It was really my hiking buddy who talked me into it. I should probably thank him next time I see him. It still keeps me warm and weights in at about 1.5 lbs