My first computer was an Amstrad, then an Apple II greenscreen, then onto the PC lines, with 286, 386, 486, pentium and so on.
Then my son put me onto Mac. What a difference.
I now run an iMac for everyday stuff and a G4 Powerbook when I want to get fancy.
I needed a software update for the Powerbook. Easy. While visiting my son's office, I put it on the desk, turned it on, no cables needed for anything; and it connected to the AirPort server and downloaded the goodies from broadband in no time flat. Needed some bits from son's machine - connect via firewire in target mode, drag the desired bits onto my hard drive, thank you very much.
Update my mobile phone's address book via bluetooth.
Create home movies with iMovie, link it with a slideshow of digital photos from iPhoto, put them together with a very professional front page with iDvd, burn it, and life is easy.
Convinced a musician friend to make the change to Mac after he saw my setup. Last weekend he and a friend performed their first paid gig in an electronic music festival using GarageBand, a month after first seeing the program. He is ditching his PC and expensive software for the Mac and its included goodies.
I have a PC in a corner of the office, only because I haven't yet bought a copy of Virtual PC for OS/X, and I need to run some software which the Oz gummint hasn't seen fit to write for Mac - the eTax software.