Why buy: Which of the latest high-tech new-car options will pay you back at trade-in?
1. KEYLESS ENTRY
Current Wisdom: Who doesn't love keyfob door openers? But magnetic entry cards-such as those from Mercedes, BMW, and Cadillac-that open and start the car require getting used to
Outlook: Keys will be obsolete someday-it's a given
Price: $250 (keyfob)
Should You Buy It? Yes. Keyless entry will be a big plus when you sell
2. INTEGRATED HANDS-FREE PHONE
Current Wisdom: Perfect for the traveling salesman and no one else