Those people are clueless. I saw some guy in sydney demonstrating windows 7 - he worked for a big company starting with "d", ending in "ell" and I started asking him some questions (my girlfriend was telling me to stop and dont be mean as I walked over and was trying to pull me back) The guy knew nothing, so naturally you take advantage of that when you want to see the Dell gurus preach the newest OS they are trying to flog to the consumers. I started acting like a clueless consumer
So I went to ask him about all the features that windows 7 offered consumers just to see if he knew his stuff. Initially I asked him about 32-bit and 64-bit architecture. He kinda knew that the 64-bit let you use above 3.5GB of ram, but didnt know why. I didnt press him, so I asked him about Direct X 11. He started talking about the ATI 5000 series. I asked him what would direct X 11 offer better than Direct X 10. He said it would look better, when I asked him how, he had no clue, kept rambling on. I then asked him about virtualisation and XP mode - once again clueless. I asked him would that new netbook (atom processor need I say more) would run the newest games, he said no (1+ for dell guy) so he started trying to flog an Alienware XPS system. I said how bout something smaller like a laptop that will play the newest games. He said this- The XPS whatever that had a Nvidia G280m in there - i asked him if it would play direct x 11 games, and he said "yeah and it would kill them too" - clueless guy.
I started checking a few things on the pc, ie graphics card, hard-drive space, ram and other stuff. took me 30 seconds and a bit of command prompt fun - he said to me "you were pulling my leg, you knew all the answers to those questions didnt you?" I said "yes, and because you didnt you have just lost a customer" (i wouldnt have spent $6K on a laptop anyway with all the things I wanted for it, to its defence it was an alright laptop, just extremely overpriced and didnt offer DX11) +1 for the consumer
My girlfriend just rolled her eyes and said "lets go to the petshop I want to look at the puppies"