Ummmmmm, thats if you buy a computer right now... Those who have owned a computer for a few years may only have a gig or less of ram. I have 2 gigs, and I run vista on the more high performance settings possible. I made a second account once, (Normal vista settings) and it took about 10 minutes to login each time. Took like 15 to log off. My computer (laptop) is just over a year old and is pretty good for the 1300 bucks I spent for it last year...
I also hate vista because half of the control menus tools do not work half the time, such as network center... Half the time it never loads... (SP1 helped a bit)... Its also really hard to change any setting on Vista... It takes me soooo long to find how to change a setting I have changed many times before...
Its so user-friendly that its one of the hardest OSs to use if you did not first use a computer with vista. Another problem, for some reason Vista is slowing eating my harddrive... Before I send the computer in for repairs I had 40 gigs of space missing from my Hard Drive... (I added everything in C: drive, including hiddens, and came up 40 gigs short... :/) When I got the computer it only had like 20 gigs of stuff on it... Might not be vista, but after one of my friends had his vista instead of removing stuff from the recycling bin, and instead have it copy to other parts of HD and remove space, not gain I think it is Vista's fault.
Networking is also much harder with vista... it pisses me off so much... it even goes as far as to changing my static ip for no reason randomly... That annoys the shit out of me cuz i have no idea why i can not host games... -.-
It also takes from 5 seconds to 30 minutes to shut down... No idea why... Lastly, half the time it updates its self it starts telling me that I have an illegal copy of windows and then it shuts down... system restore works, but COME ON. Updates are off, and i update now and then... but that pisses me off.... -.-