Things that are nice about macs
1) They look nice
2) They run a few things very well
3) Those cinema displays are sweet, although they are expensive as hell
4) OSX is pretty nice
Things that suck
1) Interface is kinda weird from a windows perspective
2) Expensive - I could build the equivalent of a $3000 mac for around $1500, AND have better stuff like video and RAM
3) No DIY - can't build you're own system. It would be like if the only way to buy have a PC was to get a Dell, and they NEVER had sales, or even good prices.
4) No choice in hardware - You can't choose different hardware, like AMD vs. Intel, or different brands or ram, or hard drives, or anything like that.
5)Crappy hardware, even on best systems - For $3000, you'd think you were getting the best in everything. You see dual 2.5GHz G5s, and start drooling. Then, you see the rest - only 512MB Ram, and it's CAS3? A 9600XT for video? A 160GB SATA hard drive, when a PC user could buy a 300GB Diamondmax 10 with 16MB buffer for just $200? You've gotta be kidding! Plus upgrades are rediculous, with an upgrade to 2GB their crappy ram costing you $1050!
6) PCs can now usually beat Macs in the areas that they used to be the best in, and for a fraction of the cost. The idea that PCs can't compete with Macs for video editing and such is just no longer true.
7) This is the most important reason - Hippies with ponytails who drive volkswagon bugs and wear berkenstocks like Macs, and that's a good enough reason not to buy one for me