You have to pick the server Mini to get a quad core i7 in the Mac Mini. Otherwise you get a dual core i7. Up until now I didn't even realize there are dual core i7's (I checked Intel's web site
here to make sure). The dual core, besides having only 2 processors has a smaller cache (but cache/processor is the same which may or may not matter depending on the code). In addition, the quad core provided with the new Mac Mini is a lower end quad core. It clocks at 2 GHz and has only a 6 MB cache instead of 8 MB found on the higher end processors. Either the Xeon E3-1235 or the slightly more expensive i7-2600K are far superior processors. It is probable that the Mini is limited by cooling restrictions in such a small case. However I just need to point out that you *do* need to pick the server Mini to get something that starts to approach the system I linked, and even if you do choose it the processor is still inferior in clock speed and cache size (and on board graphics too if you care). The processor is not bad and is in fact great when compared with previous generation dual cores, but the specs for the Mac Mini server system are clearly inferior for the price. You are paying for the size, design, and choice of OS. If I were in need of something *really* small, didn't care about OS and lack of internal optical drive I would be interested, but for a home computer there are, at least for me and my corner of the universe, far superior options.
What I have not checked is whether larger Mac computers have a better price/performance point in a reasonably-sized case. For my wife and younger kids an Apple would be a very good thing actually. Wife is computer-illiterate, refuses to invest any time learning anything, and is always doing something bad to our family computer.
Edit - Okay I just checked the other Mac desktops. The closest thing in performance to the <$1000 Newegg system with the same amount of RAM is a quad core Mac Pro that comes in at $3724 with a processor that is still inferior. So even if I go with an insane tower case and serious upgrades to the processor, MoBo, PSU, and graphics card I will still be less than half price. The iMac might be a viable option, but I already have a decent monitor, KB, mouse, etc for the family room computer (and nice speakers too), and the iMacs are available only with Core i5's. I know other people have probably been yacking about this stuff for centuries, but I honestly had no idea the price/performance curve was this far off between what I can build vs an Apple desktop. I thought it would be maybe $500 at most.
Gribs
...Music can be used to stimulate mass emotion, while mathematics cannot; and musical incapacity is recognized (no doubt rightly) as mildly discreditable, whereas most people are so frightened of the name of mathematics that they are ready, quite unaffectedly, to exaggerate their own mathematical stupidity.
G.H. Hardy in A Mathematician's Apology (London 1941).