I haven't tried thorlos but I bought all of my bridgedales in 2011/2012 (8 pairs) and with the exception of one pair they're all as good as new now despite being the only socks I'll wear (everyday, not just when walking) unless it's way too hot for anything other than thin socks or none, I'd say that's at least 300 days of the year.... so, in effect, every pair has seen a year of non-stop use
to say I'm impressed is an understatement.