It doesn't matter what Bundy's market value is, what he's worth to Brisbane, or even what he ends up getting traded for. Suggestions of a trade for Pick 21 is just downright insulting.
Christensen, Duncan and Motlop are the guys we're building a team around. Every single list management decision in the last three years has been made with that timeframe in mind - how do we ensure we have the best side we possibly can when these guys are in their prime?
On top of that, one of our biggest problems this season is that we're one top end midfielder short of what we ideally should have. With Christensen gone we'll be two short.
All this is to say, because of the situation we're in - you simply cannot put a price on how valuable Christensen is to us. Even if a team paid astronomical overs for him and gave up something like pick 1, it would still absolutely kill us in the short term. The only deal that would be anywhere close to being fair for us would be if we received a midfielder of similar ability and age in return - which we won't.