I just got a pair of LaCross Alpha Burly 1000g. I have had a pair of uninsulated Alpha Burly's for about 9 years. The durability of LaCross boots are really good.

I sit on stand in the 1000g Burly's in23* weather w/10-15mph winds and my feet never got cold.

I got them for $120 at a local outdoor store. Money well spent, IMO.