Yes but what happens when everyone wants different things? How can you be bold when you have to keep your foot in the past, the present and the future?
That's a good question. Microsoft's solution in the past has been to simply not try to be bold. It's worked well for them so far and it probably will for the foreseeable future. Metro UI is their attempt at being bold, but they also can't risk alienating their core users in the process. Whether or not they will accomplish this, seeing how hard they're pushing the new UI, remains to be seen. But I understand what they're trying to do.