old computers that are still popular

[pianowizard]

Can we list some relatively old computers that are still highly sought after? One that I am aware of is the Sony X505, which has been discontinued but people are still willing to shell out big bucks for it because it's the lightest notebook ever made (1.85 lbs).

Ebay's Vintage Computer section will give you some classics.

Although many links on this site are dead, the active ones are pretty interesting as a time capsule:
http://www.blinkenlights.com/classiccmp/

I was at the Microsoft campus in Bellevue, WA a couple years ago where they have the Visitor Center and Museum - you may find the Timeline interesting:
http://www.microsoft.com/museum/musTimeline.mspx#

[computersshopper]

Yes I think no other notebook even comes close to its size and weight (3/8" thin and only 1.7 lbs for the carbon fiber model). This one will set the standard for several years to come, but it's problem to find those customers who has fallen in love affairs with Sony X505. We're also looking such old computer to list it in our catalogue.