Indy +600 is only good value if you don't think New England will reach the AFC Championship. The Pats WILL beat the Colts by at least 10 points at Foxboro, I am extremely confident of that.
That said, I made one Super Bowl future bet, and it is JACKSONVILLE at 20-1! I think THEY are the only team capable of beating the Pats right now, and if they do, we'd probably both be happy with a Jax/Indy AFC Championship, as 6-1 suddenly becomes great for you and I could hedge a bit against my 20-1. Then, the Super Bowl will become almost anticlimatic, as either NE, Indy or Jax would all wn handily vs. Dallas or GB, and if I am fortunate enough to see Jax go that far, I would not hedge in Super Bowl.