Personally I ship without insurance or tracking...I pack real well, but I take a chance with the guy on the other end taking advantage of me. Hasn't happened yet, and never had damage either, so far it seems worth it...like my own personal insurance program....
That being said, if they buy over 50 bucks I'm gonna track and insure..but otherwise my ebay stuff will slow to a crawl and only the combined shipping crowd would buy from me...
I did get this weird message that charging 20 bucks to ship a clone set was too much, but that seemed to be an auto message....just a little ironic...
ebay isn't the best way to sell your comics....it's the only way ( mostly )