I've seen a suggestion that the Montrail Sabino Trail runners are closer to the old Hardrock than the AT Plus. Since I now have enough shoes to last at least a year, I don't plan to order any at this point. It might be worth investigation (either find in a store to try on, or order from one of the online shoe places that gives free return shipping) for those looking for Hardrock replacements.

EDIT: If anyone tries the Sabino Trail, please let us know if it has the same wide heel as the AT Plus (way too wide for me!). Thank you!