I really don't. Sure, I prefer the brown pinstripes, but I just don't get why the blue suit is SOOOO hated. While watching the show, I never even noticed that he wore a different suit. I didn't. It wasn't until I came online and read all of the dismissive, derogatory insults leveled against the blue suit that I took notice of it. And yeah, again, the pinstripes is better, but I just don't think the blue suit is that bad.
Going into my lonely-non-hating-blue-suit corner now.