Are you using anything other than a G5 at work and at home, if not, you win!
There is one Mac Pro. A 2011 Intel Xeon Quad core. But it's not even a year old in our shop. I took the opportunity when the logicboard on the 1.8Ghz (SP) G5 died to get my boss to buy it. I did not want an Intel Mac, but I work as a Graphic Designer for a weekly newspaper. The nature of my business is one of constant change. There is and always will be a "new" program and I need to be able to open ANYTHING a customer sends us.
That said, I worked on the G5 from Feb. 2005 to June 2013. My coworker is now using it and all her issues of the Mac being "slow" have dissappeared. We have one other G4 350 PCI running Tiger with 192mb ram that serves as an Applescript server. And my coworker's former G4 is a 450 AGP. Again, we have the Intel Mac only because the G5 cannot run any apps higher than Adobe CS4, Acrobat 9 Pro, Suitcase Fusion 3 and QuarkXPress 8.5.1.
At home though there are ZERO Intel Macs. Everthing I have is either a PowerBook or a PowerMac. That's because they were inexpensive. A $100-200 PowerPC Mac versus a $600-700 dollar low end Intel Mac. When you live paycheck to paycheck the difference is huge.
So, yes, at home PowerPC is used for everything.
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Not for you

I can't tell you how much I agree with you, I really don't like the newer Intel macs. I'm fine with older Macbooks, but not the new stuff as much. I feel like people look down on me for using an old iBook, but honestly, I would rather have it than a new Intel iMac. It's like coming home to an old friend, after using i5 Windows 7 machines at school! I really love PowerPC.
I've had the opposite experience. My main Macs untl I got the QS are my two 17" PowerBooks. I don't care how old they are, people stare with envy/appreciation when you pull one of those out of your bag. When you pull both of them out you get admiration.
Not that that's why I use them. It's just the 17" PowerBook has always been one of the Macs I've wanted. I have had several people ask me about them over the years and they make a great way to talk to people about Macs and PowerPC. So far, I've never gotten someone looking down on me.
Be proud. You own a piece of classic Mac history that no one else does and you know how to make it dance! And compared to some of the iCrap that's out there now the iBook shines!
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You use PowerPC Macs for all your "home" computing? You qualify.
Yep! With the exception at work of the not even one year old MP it's been some sort of PowerPC since 1999 when I first started in the newspaper industry.