I agree with Eric P, that the area around Fair Park is not the best place to look for hotels or any place to stay and hang out! Most of the decent hotels etc are located west or north of Dallas, near DFW airport to the west in the Irving, Arlington, Grand Prarie etc, and Grapevine, Farmers Branch, Plano, etc to the north.
Traffic in and out of Dallas will be terrible on Friday, no matter where you stay, but the Irving, Arlington, Grand Prarie has plenty of resturants, hotels, shopping, etc. There is also a Six Flags in Arlington.
Since it will be football season, the Cowboys may be at the Valley Ranch (Just north of the airport)., or may be playing at Irving Statium on Sunday (for those who can stay that long) I don't know if they will be there practicing on Saturday, and I don't know if it's available for gatherings, but it might be a possible location for our meet? I think Grand Praire has a Rippley's "Believe it or Not" museum there.
...Rich