Best Place for Pre-Owned Cables

I'll start by saying I hate buying audio new.  Many dealer margins are 50%, almost all 40% or more.  I especially dislike buying cables new.  I think I have maybe one or two I purchase new in my system.  I'm constantly looking on A'Gon for cables ( I need speaker cables) and any place else I can think of.  Anyone have any other sites they can suggest?  I've looked on usedcable.com but their prices are absurd.  Most of the stuff they have is YEARS old.  They're selling AQ speaker cables that were released in 2004 at 50% of their new price.  To me, anything that old is scrap.  I might entertain amps/preamps of that vintage but never digital (it's like buying a ten year old PC) and rarely cables.
I haven't found another good site (Audiomart is mostly an overlap of A'Gon) but I thought I'd ask.
Thanks in advance.