As Joel says
I don't understand all these people who say that Macs never crash. I couldn't agree more. I've had a Macbook Pro for several months now and my experience is going down hill. It crashes often, not only the same crash Joel speaks of (although the recent Airport updates seem to help), applications are definitely more unstable on Mac than Windows. Even the built-in text editor crashes frequently without warning. Admittedly the UI for a crashed application looks nicer on a Mac, maybe that has something to do with it, but it doesn't get any points with me. A crash is a crash and I have the same reaction every time (of which the words I utter are inappropriate to note here :) ).
OSX was great fun at first. It is beautiful, and a fun new toy with all new apps and system directories to explore. I was completely sold on Mac Mail for quite a while. Telling everyone it was simply the best mail program anywhere. That is until I noticed Mail was not downloading mail from one of my accounts. No error, no nothing, it just didn't download.
It took me quite a while to realize it as I have four mail accounts and a couple of them get lots of email, so I didn't notice I was missing hundreds of messages from one of them. After searching far and wide for a solution, and found others having similar problems, I finally installed Thunderbird and am now using it on OSX.
And I don't need to say much about Finder, as I know even hardened mac users dislike it. It is terrible and has it's own share of crashes when viewing directories with odd file names in them. I wish my beloved Total Commander worked on a Mac. I might keep OSX around longer if it did.
Now that I use Firefox and Thunderbird as my primary applications on OSX, I really don't see the point. I think I'll scrap OSX and install Windows on it until I can get my new laptop. My last laptop was a Toshiba which was the finest laptop I've ever had (and I've had many).