I spoke to the producer of that particular productiuon of Rent one day and we started talking about this whole casting stunt.
He sort of agreed with the fact that it is a complete joke to have someone like her mime to the songs but he made a few good points from his point of view.
He mentioned all the articles, TV appearances and therefore advertisement the show received just because of Caprice, he wouldn't have been able to afford this kind of advertisement in a million years. He was referring to full pages in daily papers that would report on her appearance in the show, so yes, the profits of the show definitely benefited because of her.
Of course, the whole show became a joke amongst theatre lovers and were a slap in the face for a lot of talented people out there but it's all about the cash at the end of the day.
By the way, she mimed to her own voice. Her voice was too weak and shaky for a live performance, hence they brought her into a studio, recorded and enhanced her voice and off she went to mime to her own voice in Rent.
QM
'He really wasn't good as Fieyro. Is it just me or does he sort of come across as a pimp? Just...the hand motions I've seen him do and the attitude..not that Taye is a pimp.' - SallyBrown on Taye Diggs as Fiyero