Why?
Because they love this band despite the musicians being older and greyer and fatter than most hip 20 year old bands.....
Thus, if you are a teen or early 20 fan of New Order, you are the type of person who puts music first, before pretentious appearance crap.
I got into New Order in the mid-80s, and admit to being a bit shallow back then, DID care about appearances to a degree, which looking back was pretty silly. Fortunately, New Order didn't disappoint, were quite stylin in an alt.indie type way.
I wonder if I would have been cool enough to at age 18 seen the worth of New Order in 2005... I might have passed them up for being 'too old' and instead followed Bravery or something.
Anyway, just my roundabout way of saying how amazingly cool you younger new order fans are. very smart people. I wish I was more like that when I was younger...
(p.s. sorry if this post is a bit sentimental or uncool, but I just had to emote this morning on this...)