My point has been that resigning Berba just in order to sell in the summer isn't as simple as it sounds. As we've seen with PIG and Gibson last summer, you might not be able to sell the player at all and end up with him eating at your wage bill, doing very little for the team.
If we've made up our minds we do NOT want to keep Berbatov after this season, it might be better to let him go on a free. Else, we could give him a year's extention, but fail to find a buyer who can agree terms with him, or maybe he'll just refuse to to. City can pay Bridge 90k a week without it being any problem, we can't. Those 100k Berba picks up is money we won't be able to use for any new signings, for instance.