I will say this once more and then I am done. No vista is not the future, the future in hardware has to do with EFI - extensible firmware interface - google it. It allows OSes direct access to hardware via firmware interface, allowing for the snuffing of all drivers, no more boot sectors on the hard drive the motherboard will have a flash rom instead, no more messing with any of that over bloated crap. EFI also breaks the 16bit firmware application barrier allowing developers to develop 64 bit firmware driven application nested into the hardware itself. That way everything you would ever need be it a driver, API, instruction sets, utiltities will be built into the hardware itself. IBM and Apple are already using EFI, Microsoft was suppose to and they are holding back hardware advancements because they did not include it in Vista, so anyway, when Vienna comes out in 2009-2010 and actually has EFI support you will be forced to ugprade anyway.
Furthermore 64 bit is not quite yet the future. 64 bit has been out for a very long time and is not quite the future of desktop OSes. Developers still develop and will still continue to develop 32 bit applications for a long time from now. Also, MS did it the complete wrong way. Every other 64 bit OS out there has both 64 bit and 32 bit library files so you can run both at the same time. Where as MS just decides to have two different versions. Now if you want to say that 64 bit is the future of Server OSes, then yes I agree with you because all server side technology is pretty much 64 bit these days, with full on 64 bit support. Desktop OSes not so much.
Gaming is a niche market and DX10 actually lowers performance in Vista over gaming in DX9c in XP. You get average lower fps in vista with DX 10 and in some games it is not even noticeable differences in graphics. Google this as well and you will find many many articles that support this.
Vista is not even near the future it is just another Windows ME. When vienna comes out and EFI support is in full you all will be forced to buy complete new hardware that supports EFI technology.