Between '89 to '95, I went to multi-dozen trade shows. Four a year sometimes. COMDEX, CES, E3.
I stood around in my cheap suit, in horrible dress shoes, and show off CD-ROM multimedia software.
It got a little better after other, larger companies started putting show personnel in casual-dress uniforms. Golf shirts with logos, khakis, black sneakers, that kind of thing.
What made it all incredibly frustrating is that, while I was working in "high tech" (I mean, gosh, multimedia CD-ROM), it was all about selling and sales and making deals. There was no real interest in the technology, and what it could do, and how it worked.
I eventually got my ass in gear and went to grad school so I could actually work on a development team. While I miss the travel sometimes, I'm so glad to be through with trade shows.