Does anyone know if Groce stayed the night in Champaign? Or did he come back to Athens to contemplate the offer?
This is taking Groce Watch(tm) to new levels of geekiness, but the Dassault Falcon that flew him out is considerably smaller than the Learjet 45 that's flying today. Suggests that the family might be tagging along for the big conference.
What does the choice of plane tell us:
They didn't stick him on U of I's 40 year-old, single engine Beechcraft or Cessna, so we can be fairly sure that he didn't blow them off. Other than that, they're either flying him back to Athens in a plane big enough to carry his family back to Champaign (as Recovering Journalist suggested) or he hasn't given them an answer and they're still wooing him, by sending him in the Learjet.