When an individual or a company sets up a booth at a trade show, the goal is to stand out with the trade show booths and banner stands. Naturally the product that is being shown should be unique and/or top rate but the presentation has to be excellent as well. Remember that your booth is going to be the first thing that potential consumers see and first impressions are everything. You can rarely ever correct a bad first impression.
So everything from the table skirts to the pipe and drape should create a sense of what you want people to think about your company and product. A trade show can be a great place to get exposure and draw in customers but a cheap and shabby display can ruin those chances. Your company and product will look to be inferior and those with money will pass you by. Not the goal of one of these shows.