Originally Posted by brak
Cost isn't but flexibility and ease of use are.
I switched to Berkshire UL rated tinned marine grade wire a few years ago and the stuff is amazing and costs significantly less than Anchor. It is about three times as flexible and much easier to use. My boat is done in 1/0 and I spent about $130.00 on the supplies to re-wire every battery cable run on my boat including the lugs and adhesive lined heat shrink.
I buy my Berkshire wire from Battery World in Portland, ME. Dave is a great guy and I bet he'd ship too..