I hope you enjoy your mediocrity.
		
		
	 
Just think of how much faster I could get this php script done with a solid state hard disk, 16 gigs of ram and a Nvidia 470 video card!
Like it or not, a computer is just not about raw internal power any more than a car is. I don't shop for cars by looking at how powerful the engine is and how much gas it uses and base my purchase on that. I buy my cars based on how they look, how they meet me needs, AND how powerful they are/ gas they use.
No different then buying a PC. I look at what I want to do, what is required to get that job done, what I like, what is pleasing to my eye, and what I can afford. Then I look at which of those thing's I've found is the best buy.
I recently need a computer for a htpc. I toyed with building my own or buying one of those tiny one's from dell. But to get the power I needed (based on reading reviews) I would have to spend 500-700. The mac mini was not the cheapest thing to get the job done, but it was in the range, would get the job done (and then some) and was the most ascetically pleasing. Thus I spend the 600 on the mini.
Honestly, my next computer (which will probably be in 4-5 years) will probably be a notebook or AIO computer. They look good, get the job done, and take up little space. I lean to the notebook for the extra bonus of portability. I have a apple 24 inch display at home, so as long as we keep using mini-displayport I'm good to go.
I find that I actually need less power as time goes on. As stated my current 2010 macbook pro has no advantage over my 2008 macbook pro (pre-unibody). Even though on benchmarks my current macbook kills the old one. The only thing even remotely taxing my computer these days is Dragon Age 2.