I'm ok with Borne at Upton's price, (wouldn't love it, but would be ok with it) but anything above it I say no.
I think that is about what he is worth, but I don't think it makes sense for this team. Too much risk on the back end of a 5 year deal with him. Also, I think we are trying to see how many incorrect ways we can spell Born.
Clearly the Cubs are in because Bourn's market is starting to dry up. Atlanta and Washington both have their CFs now, and those were supposedly two of the biggest contenders to sign Bourn. If they get him cheaper than what he wants, good deal. If not, the Cubs will be just fine.