Let's see, they managed to renew two models of Mac last year. The MacBook and the MacBook Pro. Everything else was stagnant. There was almost no reason at all to purchase a Mac. While the MacBook update was actually superior to the previous version, overall the update was pretty bland. It's like Henry Ford took over and said, I have the perfect car, why should I change. Granted, Intel's missteps hasn't helped either. They haven't exactly put out a homerun in the processor market since the days of SandyBridge. In the realm of the Mac Mini, their desktop actually regressed from the previous version in only have a dual core processor.
Maybe if they actually do something this year, we can get behind them and buy their products again. If not, I am certain they will continue to slide down to the level of other vendors.