You want how much for wireless?

I'm off in mid-April to the NCTM's Annual Conference; I'm looking forward to it because I'm also attending the Research PreSession (have to learn how to network with researchers in anticipation of starting my PhD) and also the NCSM, which is more for teacher-leaders. Not that I'm a teacher-leader by any stretch. I just like to know what's going on.
Anyways... as I was preparing for my own session (it's on Saturday the 26th, discussing Web 2.0 and aids to differentiating instruction) I checked in with the supplier of wireless access at the Walter E. Washington Convention Centre - SmartCity. If I'm doing some internet stuff and differentiating, I'd like the participants to experience what we do with our classes. Unfortunately, they replied with a cost of 24.95$ a day. And that is for access suitable to "checking email and surfing the web... not recommended for exhibitors or presenters". So much for that idea... it's going to cost me almost 200$ to just equip myself with internet access for the week of the conference. And so I'm going to have to ensure that everything is available locally. Thankfully, GoogleDocs has an offline mode but it may endanger my attempt to use CoolIris as a presentation tool. Instead of being able to model the activities with the participants, it will likely be more of a (albeit very cool) standard presentation on what we're doing.
It's sadly ironic: SmartCity's logo is Making the world smarter. Instead, they are my greatest impediment.