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My current one(s) are a 2012 Macbook Pro Retina & 2011 Mac Mini Server.

However, my oldest one is a Powerbook 12" 1.5GHZ that is probably 10 years old now, still runs like a champ!
 
ha, I am on a 2006 iMac intel core duo.

It is my daily and it works, but is starting to really show its age. I am typing on it right now and it beachballs every few minutes. Streaming music, and editing photos at the same time is a big no no.

I am ready for the new macbook pro with retina. I was desperately hoping it would be released in June, but can wait until Sept if needed.

This imac still works, just has its limitations.
 
Mine works great since I got the SSD. Won't change it until 2017 or so. I might get a hackintosh desktop before, but no new laptop.
 
I have an old PowerMac G4 MDD (mirror door - circa 2003) that i boot up once every 6 months or so.
Damn thing was state of the art at the time & even though it earned the
nickname "the wind tunnel" it still groans into life everytime..

Dual 1.25ghz processors & 2GB ram maxed out!! seems ridiculous nowdays
but in the day i was able to record & mix some pretty fullon ProTools sessions & enable more plugins than i can now on my MBP 17" early 2011 with 16GBram & a SSD.

Every Mac I've ever owned i have sold (working) to upgrade & never had one fail on me yet...*crosses fingers*
 
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