Now, if Bridgestone/Firestone will also add to the options, with DTC, of course the competition will be on. I've no experience with Avon tires. I imagine an email campaign generated on the .com site motivated Avon. I did email Avon, simply testing the waters, and that was their response.
I've always liked Avons, but I probably wouldn't try them unless it was time to change both front and rear. I'm not sure I would like to have mismatched tires on the bike.