I've noticed that the two local KB stores seem to carry many Harvest Moon games. I've seen Innocent Life (PSP), Boy & Girl (PSP), Puzzle de Harvest Moon (DS), Harvest Moon DS (DS), Rune Factory (DS), & A Wonderful Life SE (PS2).
They tend to sell fast though as I see them one day and they're gone the next leaving behind only the 100 copies of Ninjabread Man.