After 5 years and 75000 miles, it will be time to change the batteries. Check out the impact on resale value that will cause. Who wants to dump a few thousand into a 5 year old car?
But if you don't, what does the resale price do?
I say they are gonna have a real problem selling used hybrids in 5 years.
Is that based on something you can provide a link for, or did you just make the whole thing up just now?
There is not a Prius out there that has needed a new battery after 5 years or 75000 miles. Toyota doesn't even have a single battery failure case yet - and Priuses have been on the market since December 1997, with prototypes running since late 1995. Lets stick with the truth and stop spreading lies about batteries, ok?