I am getting an iMac probably this weekend. I need to a little help in deciding to get the latest and the greatest or maybe the previous model in the 21.5 inch screen. The new 21.5 inch with 2.5 ghz quad core i5 for $1199 in store or $1132 at macmall. or Previous model with 3.2ghz core i3 for $1075 from macmall that comes with double the space yet weaker video card. They say the newest mac is 24% faster. How so? I don't do video editing nor do I play video games. I mainly surf, email, play music, youtube, Netflix, personal financing program, and maybe iWorks. Do I really need the latest and the greatest? Is it worth saving the few bucks and using that money to get Apple Care?