In fact, I think many of you posting here were reveling in the iMac sales figures recently released. Those iMacs had matte displays.
So, it seems that Apple had a line of machines with matte displays that were demonstrably popular with consumers. Apple has now removed that option.
Apple does not report sales figures by model. They report desktop and portable sales. No one really knows which models sell best although I would agree with you that the iMac has been a good seller.