Mac Mini is a great system
Here is my setup:
Mac Mini
1.5 GHz PowerPC G4
Mac OS X 10.4.11
1 GB RAM
ATI 9200 GPU (64 MB VRAM)
75 GB Hard Drive
SuperDrive
Airport Wireless Card (with Bluetooth)
My Mac Mini system is rock-solid and very reliable....I couldn't be happier. Good points (in no particular order) include:
1. Compact form factor
2. Air-cooled (so it's essentially silent under most conditions)
3. Inexpensive
4. Modular (monitor, keyboard, etc. can be replaced easily)
5. Reliable
Some may say that it is obsolete and serves no real useful purpose, in light of faster, more powerful Mac systems which are currently available...but I say "Hmppph". Personally, I think that most people just want the 'newest and fastest' just for bragging rights.....really, how many computing cycles of a 2.0 GHZ Quad Core Intel chip are you actually using in a typical computing session? Are you even utilizing 10% of all of that computing power during the lifetime of the computer? On my modest system, I send email, surf the Internet, design webpages, play games, play music, typeset mathematics research articles, use Mathematica for research, etc....
Of course, having said all of that...if indeed the upcoming MacWorld Expo (2009) brings the rumored update to the Mac Mini, I'll be one of the first in line to upgrade to an Intel Mac Mini! =)
Long live the Mac Mini platform!!!
Mathguy