Speaking of Nike, I had kind of a crappy experience returning a soccer ball. I bought my son the Ordem 2. It's the official ball of the Premier League in England and it cost $150. The thing would not hold air. It would lose air over a few days, requiring it to be re-pumped up. When I first contact Nike, they tried telling me that it's common for high-end balls to lose air. The problem with this is that I can tell you from first hand experience that the more times you fill a ball with air, the higher likelihood that the inflation seal will become worn out, causing it to lose even more air.
The ball was under warranty, but it necessitated sending it to Nike, which I did. They then acknowledged receiving it, and said it qualified for a credit of $150. (I was out the tax that I paid, roughly $12). I then used the credit to buy the new Ordem 3. However, I again had to pay tax, another $12. So despite the warranty, I was still out nearly $25, which is probably a lot more than Nike paid to produce the ball.
The ball arrives tomorrow....I'll update this with a review of the ball.