3. The Pistons are old

Chauncey Billups (left) is 31. Lindsey Hunter (right) is 37. Tayshaun Prince is the only Detroit starter under 30. The Celtics are no spring chickens, but their starting point guard is a 22-year-old ball of energy, and their starting center is 23. The Pistons have gone to six straight conference finals, which you can chalk up to either experience or old age. Let's call it old age.