Makes perfect sense to me. I'm getting ready to do my business travel gig so probably don't have much hope of seeing them anyway if they do get to Richmond.
My recommendations on a previous thread regarding wineries still stands. Harpers Ferry in of itself makes a pleasant day as would a stroll through Old Fredericksburg (I'm surprised Pickers is still in business!).
In Richmond we have various museums, gardens and parks and state government. Just east one can take in some of the James River plantations from the early colonial days (but not near Willamsburg!). And of course Charlottesville offers Monticello and UVA (as well as more of those wineries).
From following these various posts, I can tell you're a warm and gracious host. SOunds like all had a splendid time.
Ed