I'm afraid it is here to stay but the term has multiple interpretations. Back when I was in tech sales we generally went to visit clients in business casual by decree of our own management... and this while selling $5M implementations. It does vary by the sector of the company - when meeting the 'C' level I always wore a suit and ignored my slob of a boss who said that it was more important that I impress them with my technical knowledge and that clothing was not important - as if somehow wearing a tie reduced blood flow to the point where I could no longer comprehend technical matters. When meeting with the IT guys I still overdressed according to my boss but my definition of business casual was typically a light silk sweater (polo collar type, buttoned) with a nice sportcoat and dress trousers, good shoes. The business casual look of "hey, I traded in my fraternity tee shirts for techie logo golf shirts to wear with my khakis" just does not work all that well. It is a matter of your personal philosophy but having been on different sides of the equation I have never thought "he looks too nice". If I wore a suit to a meeting where it was clearly wayyyy too dressy I could easily lose the jacket and tie, roll up my sleeves and blend in. I may be weird (well, OK, I am but not necessarily due to this) but I am terribly uncomfortable being the most casually dressed guy in the room, would much prefer to be among the best dressed for numerous reasons. 9/10 times in sales meetings where I tended to be the most dressed when an exec popped in to ask questions they went right to me. I ain't pretty, i don't look particularly bright so why did they immediately look to me for answers? My guess is that, lo and behold, our first impression when we walk into the room is that the well dressed guy knows what's going on and must be the person in authority. Right? Irrelevant True? Damned relevant. In a field where my first few jobs were 100% dependant upon my knowledge of parallel algorithms and supercomputing I jumped up in pay and responsibility very quickly because I could be trusted to look and act appropriately in front of customers. Keep pushing toward better attire. it is an absolute myth to say that dressy can't be comfortable.