I guess the only reason to keep white would be that if we're playing a road game and the home team wears s uni combo that basically forces us to go white. Other than that, I wouldn't mind shelving them at all.
W/ 4 different jerseys there shouldn't be a need to ever go white if you dont want to.
I just think Nike is going to try and do some new **** w/ the 2 extra jerseys so they want to keep it traditional/safe for the first two.