The old mac vs p.c argument is funny.
For many years I always had mac's, starting around 1990 when we got our first computer at home. From memory the first one we had was the Macintosh colour classic, over the years I also had:
iMac G3
iMac G4
Power Mac G4
Power Mac G5
Mac Pro
G4 cube
Mac Mini
iMac
iBook
Powerbook G4
Macbook
Macbook Pro
I wouldn't consider using them now though the last iMac and Macbook Pro I had at the time getting sold on some years ago. I used to love how reliable and fast they were especially when at the time programs like Photoshop etc. ran much quicker on a Mac than they did on Windows.
That all changed after Leopard and the software became much more buggier and unreliable, the hardware also stopped being anywhere near as good in terms of cost vs performance around the same time. I don't think it is any coincidence that they became much more popular with the general public around this time due to the success of the iPhone. With the "newer" Apple kit we had several serious hardware failures, mainly logic boards.
I then switched to Windows, in the end however it did come down to cost when I checked the price for the specification I wanted for the equivalent hardware I wanted at the time there was over a £2000 price difference between the two and I just couldn't justify it as the advantage wasn't there any more.
Been a happy windows user since, can't say I have ever had any major issues either. When we had Mac's we upgraded every 3/4 years and have pretty much done the same with the windows kit. I guess you could say that the Apple stuff fetched a bit more used when it came time to move it on but it was also much more expensive in the first instance so there wasn't really a difference there either. The costs of ownership for the windows stuff was still less.
My wife still likes Apple stuff and she has one of the last gen iMac's still, but she tends to use one of our Dell laptops more often now as the iMac is a fair bit slower. Me, my wife and my kids do all have iPhones and iPads but I couldn't ever see us buying another Apple computer again.