Dallas would be a great location for a show...surprised someone hasn't thought of that before. Oops....they have.
Does this mean that everyone who thinks Dallas would be a great location for an ABS/Guild show will be attending the 2010 Spirit of Steel Show in the Dallas Metroplex?
Why not Nashville, a major airline hub, centrally located to the majority of the driving population.
If the earth should shatter open and the Guild and ABS drop their respective shows and do one together the city I would recommended would be Atlanta, Georgia. The location? Cobb Galleria. Seems to be ideal for some other shows doesn't it? Six months away from Blade.
I originally considered Atlanta over Dallas, however I believe a Dallas location would result in more West Coast/Pacific Northwest attendance. Even though we know that it's very little if any additional expense and not much additional time in traveling from the west coast to Alanta as opposed to Dallas, there's still this "traveling from coast to coast to a show" stigma that many can't get over. Having another show at the Cobb Center would surely reduce your margin for error as they have definitely figured out the knife show to a great extent.
And I would invite dealers, and suppliers, and even a small percentage of the suppliers tables could be things like ray-skin wallets. And everyone already knows where to stay and how to get there.
Perhaps wallets, but I would leave the handbags/shoes 
out. Seems like the bazaar selection of non knife related items offered at Blade last year really struck a nerve with many makers. Dealers and suppliers are important to include in my opinion as well.
As for landing on someone else's show dates? Doesn't seem to bother any other show promoter when they pick show dates. Look back on your calendars and see how many shows were in September when the Spirit of Steel Show started--versus now. Wanna do a show, pick your date and have at it. No need to respect anyone's show dates. The precedent has already been set on that score.
I agree here as well. You have to pick the date that makes the most sense and go with it and let the cards fall as they may. Farthest away from the Blade Show as possible would be my suggestion as well.
Where are the proponents of the ABS and Guild that I see posting so often in other threads?
There are two major reasons such a show will never happen.
1. To much turf to battle over.
2. It would make sense.