The discussions I have had have went something like this.
Us - You want Nuge? We want Spurgeon+
Them - We wouldn't do Spurgeon at all. Dumba for Nuge. We might add a bit.
Us - Don't want Dumba, the add would need to be massive. Spurgeon?
Them - No Spurgeon. Maybe Brodin.
Us - We don't need Brodin, we need someone better. You would have to add to Brodin anyway.
Them - No adds, Brodin is fair. Not sure if I'd even do Brodin for Nuge. Nuge isn't even an upgrade on what we have.
And it would usually spiral to unreasonableness on both sides from there if it hadn't already.