This document aims to shed some light upon the issue. As a result the project needs to get the entire booth sponsored by the organizers and not just space in order to run a proper and well staffed booth. Secondly, everything that is shown on a Debian booth on an exhibition is loaned from individuals or companies who provide a means of support to us.
All equipment is maintained by Debian people who are interested in running that booth.
All expenses, be it lodging or travelling, are paid by these individuals out of their own pocket. Additionally it also means that people, who would staff the booth, will actually have to sit on the naked floor if nobody provides tables, chairs and a carpet. In short, such a booth would be look very poor. It is quite questionable whether this would demonstrate the high level of an exhibition, poor project or display that the organizers don't have money or don't want to spend money on free software projects. After all, these projects create the products what the organizers get paid for.