In today's NBA, with the money being thrown around, I'd say yes. By that I'm not saying we should go for it, but I do think it's his worth.
With a player like Horford who is an allround offensive big, I think we can handle the fact that his one on one offense is bad. He can rebound (a need), block shots (a need), run, defend multiple types of players, can switch on defense, grabs a lot of steals for his position, has great hands and can finish above the rim.
He would be a perfect fit right now.