My travel is mostly business, and 9 times out of 10, I will be going directly to a meeting or a customer site or one of our offices, so I almost always travel in a suit. I do feel that I get better service or am treated a little differently than those that are in jeans. Not as comfortable, maybe, but better served. Think about it--when an airline employee sees a suit and a track suit standing in the premier-only line, who do you think they might suspect of not being in the right line?