Getting a lot VC funds for start ups some time treated as a sucess, b'cause VC's invest money into your firm most due to they believe that the start up has some potential. But this is not the ultimate thing. As somebody said 90% of the start ups are failures.
Single person bootstrap start up can be successful. look at the case of Instapaper.(http://www.instapaper.com/)
Most of the innovative products are designed and developed in silicon valley. And most of them prefer Mac over PC. Because MAC is beautifully build, it creates some innovation in the field of personal computers. So the they uses the mac in their demos. And rest of the world follows the trend.
And also because Apple is also treated as luxurious brand compared to PC