I haven’t had as many as you, but here’s my Mac resume:
1. My dad got an SE/30. (Still has it)
2. Years later, he bought me a Colour Classic II. (Sold)
3. Years later I got a Power Computing clone (I forget the exact model – one of the top range). (Still got it – somewhere…)
4. iBook Clamshell G3 466MHz with Firewire (Still got it, working)
5. iMac G4 800MHz ‘metal neck’ model – still a great design IMHO (gave it to family)
6. PowerMac G5 2.5GHz (motherboard, CPUs and Liquid cooling system recently swapped out courtesy of Apple!) (still in daily use)
7. MacBook Pro 2.6GHz Core2Duo (still in daily use)
8. Mac Mini – upped to 2.3GHz Core2Duo as HTPC (still in daily use)
9. MacPro Quad Core 2.6GHz (still in daily use)
10. Asus EEE 8.9″ 1.6GHz Atom running Leopard – sweet! (in daily sofa use)

11. – waiting on the next Mac Pros to come out… to replace the PowerMac so I can be exclusively Intel.

There’s also the Original Airport Base Station (now retired), Aiport Express, Airport Extreme, iPod Photo, Shuffle, iPod Touch, iPhone (for the wife)
Don’t forget all the Mac software – I even paid for the OSX Beta when it came out!!

Scary how much money I’ve spent – luckily, I’ve made a living out of many of these machines, so they’ve more than paid for themselves.