Good point, but that 60 mil wouldn't have just been paid to Imaginarium, there's the people paid to invent a new language, the fees for the actors (probably the biggest outlay), all of the dev work that has taken place pre and post shooting etc.
The mo-cap data itself is probably the most sound part of the whole deal, seeing as they would have paid top dollar and did get the best in the business to do it, everything else though........
I'd be fascinated to take a peek in their books and see how they managed it...