From what I remember Kaka was 55 million and Ibra was 49 million + Eto'o. Now although I love both Ibra and Villa, I can't imagine giving up Eto'o for ANYONE. With that said, I don't think Ibra would have ever glued with the team to make it look like the well oiled machine it was MOST of this season until the last month or so.
Look at it this way, Ibra's wages alone were what 10 million? Thats 10 million we saved this year and put towards Villa + the 29 million it's rumored Milan will pay for Ibra next season. That's better than letting him rot on the bench most of the season don't you think?
Kaka, although he's a fantastic player, hasn't done a damn thing for Madrid. After 2 seasons he's given back nothing for the 55 million you paid. Sure we dished out 89 million and squandered Eto'o but at least we won the title last season and didn't spend half a billion on the rest of our squad within the last 2 seasons.