Tulo still has his share of health concerns as well. So that may drop his price down a tad and make teams hesitant to include a bigtime hitting prospect. Tulowitzki is simply not a 150+ game a year player. He is a GREAT player, but there is also a very good possibility he's going to be not in the lineup 30-50 times a season. Seems like his future may be an AL DH eventually.
While we have the horses to get him I wouldn't want to give up Noah AND Nimmo (a deal would probably start with both of them) for Tulo.
A CarGo deal is likely one or the other.