Worth Every Penny
Yes these socks are expensive, but boy do you understand why when you start to wear them. This is the most gloriously warm sock I've ever owned - so much that I immediately bought a pair for my wife.
Never Let me down
I have just stocked up on these socks, because they have lasted me 4 years of use Winter Climbing and Alpine Climbing. When I am cold in the house or in the hut I wear them like slippers. Feel very comfortable and the extra cushioning is precisely where it matter most. Just make sure you trim your toe nails if you want to make them last as long as possible!