Nike and adidas have most of the youth but their shoes are not the best. Fed has his modified and wears shoes totally different then the ones for sale. What does that tell you. Nike and adidas are good shoes but NB are far more comfortable. The best marketed is not always the best product. I started wearing NB last year for the first time for tennis and am very very impressed.
"He looked like he was trying to imitate Sampras when I first played him." Agassi in Facing Federer