I visited the Darn Tuff factory sale yesterday (11/16) in Northfield VT. This sale runs the first two weekend of hunting season in VT and is very popular. I waited about 1 -1/2 hours in line to get inside and when I left the line as just as long.
All the Darn Tuff hiking socks varieties were on sale usually at 50% of retail or less . A particularly great deal are their US military sock seconds which usually have a skipped thread in the sock which doesn't make a difference for hiking. These socks are merino with acrylic blend and tend to be slightly more robust than the regular darn tuff hikers. If you have a use for 12 pairs, the cost per pair was $1.50 a pair which would be hard to beat anywhere. I used to use Smart Wools but have switched over to Darn Tuffs. buying 6 pairs they are $1.66 a pair.
This sale is only at the factory in VT and is not advertised heavily. I don't know how good the inventory is the second weekend but there was plenty when I was there on the first day of the sale.