I'm aware that several 2000-era model years of the Honda Odyssey were especially prone to transmission failure. (Apparently Honda redesigned it in 2007.) Recently I've seen several older Odysseys up for sale with caveats such as "transmission is starting to slip," etc. Others advertise "transmission recently replaced." I would probably feel more confident buying one with a replaced/rebuilt transmission -- but if it's the same model of transmission, how much extra longevity would I really be getting?