Indeed. Although in today's world it has reached a sad state of affairs that suits represent well turned out people who like to make an effort. Sad I know to judge a person on their suit, but that's the way it is these days, and probably will be. But suits AREN'T boring - in fact when I used to interview people (ok, not for air traffic), but I used to be able to tell a lot about the person just by colour and type of shirt, and choice of tie. Sounds crazy I know and prejudiced, but it's very very true.
Who cares what you wear when you actually get the job (well, there's a limit), but first impressions always count.