Coveting possessions is unhealthy. Here's how I look at it:
All of the computers on Ebay are mine. In fact, everything on Ebay is already mine. All of those things are just in long term storage that I pay nothing for. Storage is free.
When I want to take something out of storage, I just pay the for the storage costs for that particular thing up to that point, plus a nominal shipping fee, and my things are delivered to me so I can use them. When I am done with them, I return them to storage via Craigslist or Ebay, and I am given a fee as compensation for freeing up the storage facilities resources.
This is also the case with all of my stuff that Amazon and Walmart are holding for me. I have antiques, priceless art, cars, estates, and jewels beyond the dreams of avarice.
The world is my museum, displaying my collections on loan. The James Savages of the world are merely curators.
As I am the curator of their things, and thus together we all share the world.