Well, I have final proof I am a 100% switcher.
Sometime last week I caught my 4-yr old son chewing on the power cord plug (still connected to AC!) for my iBook. Two days later my wife yanked the power cord while sweeping, and the inside tip of the connector broke clean. It flew across the room and we never found it.
Still, it had enough left to stay in contact and keep the battery recharged. I said to myself I had to go to the Apple store, 1/4 mile walk from my office, and grab myself a new cord. Then the procrastinoids grabbed me by the neck and eventually forgot about it.
Two days later the connector was so worn out it would not plug into the iBook. CRAP. I managed to pull 3 hours of work out of the iBook until it had about 25% left in the battery. Then a nice fellow in IRC showed me how to turn the iBook into an external firewire drive so I could boot a G4 powermac at the office with it. That bought me almost one extra hour of work. Then dead for good.
Of course, this happened on keynote day, and for some reason the Apple store was out of stock. They were nice enough to call another store in the area that was too far for me to go on business hours and their reply is they had "plenty."
I spent the rest of the work day on Windows 2000, totally miserable. Mind that during my workday I am on Windows 2000 in and out most of the day, only I use the remote desktop client for OS X and do it from my mac. Sitting in front of that windows machine really drove me crazy. And I am not even a windows hater, hell, I still write asp and Visual Basic! But I could not stand working directly off that machine.
I had to watch the whole keynote on Quicktime 6 for Windows, I thought it sucked but many people could not even connect, so I cannot complain. When Steve started announcing Safari and the iLife apps I got frustrated again because I did not have a clue if I would even have a mac that evening (I was afraid the connector broke the inside leads of the iBook's power supply plug).
This told me I was more into the mac that I even tought. Maybe because I was still using remote desktop to manage my Windows 2000 servers it was not so obvious, but I am now sure my switch is 100%.
When I went to the second store I bought the LAST power connector left, so much for "enough." And yeah, the iBook was fine.