It's probably due to the black jerseys looking better than all of the other variations of our uniforms.
I'd have to disagree there. Maybe I'm just old school when it comes to uniforms, but I definitely prefer the road grey and home pinstripe jerseys to the black jersey. I would have no problem with the black jersey as our designated Friday / Saturday night home jerseys, but I think they wear it far too often now.
I like the black jerseys it definitely reminds me of 2003 when pudge came up with the ball. Also baseball needs more color in its uniforms, the only reason white and grey are traditional is because the owners back then were extremely cheap and only bought wool potato sack like fabrics and didn't want to spend money dying them, and there were no sizes and because of that baseball is the only major sport were the uniforms got less baggy.
Edit: The Marlins are 6-2 while wearing the black jerseys with the only two losses coming during that six game losing streak.