Food for thought -
The TDM correlations (time-distance-money) will probably keep regional rallies higher on the "might do this" list, but if the goal of a national is to attract a wide audience and truly see a worthwhile attendance, my thought is to choose a venue with a view to geographically centered.
The Geographic Center of the United States (contiguous forty-eight) is located about two miles northwest of Lebanon, Kansas. Take US Highway 281 north 1 mile, and turn west one mile on K-191 to the maker that has been erected at the end of the paved road.
As a rural, "wide spot in the road" Lebanon can't handle such an event. But as a reference point it is useful for planning.
For example, it is 375 miles west from Lebanon to Denver, CO.
So for a guy like me, an extra day on the road to get the the Rockies is an attractive factor.
Here are how my distances shape up:
- To Lebanon, KS: 936 miles
- To Denver, CO: 1,270
- To Pinedale, WY: 1,670 miles
There are a half-dozen nice motels and another half-dozen flophouse quality establishments in Pinedale. (Don't worry about how I know this, just trust me...)
Finally, if you "go east" it is equivalent distances to find decent riding in the hill country of Missouri or Arkansas or similar places. By decent riding I mean something other than the flat, straight roads of the mid-west.
Personally, my days of day after day riding to get somewhere for a cup of coffee are over. I would trailer to anything beyond an overnight stay, meaning a day out and a day back from home.