In reply to chris_s:
Well usually if there was some sort of accident or similar then it would either be in the local climbing news or on similar websites to this one.
For example I once heard of some climbers who helped out rescuing someone who had taken a big fall and broken something (leg maybe? not sure) Anyway they left heaps of gear doing multiple raps and posted to explain the situation on a forum, think someone else retrieved their gear, or maybe they got it at a later date, my memory fails me.
Equally I once met a group at the bottom of a long crack route we were planning to climb, they had bailed leaving 3 cams and biners and slings. I was confident I could climb the route and offered to retrieve their gear. The leader said if I could climb it the gear was mine! I did and still have the cams! Score!
Also if you are ever poor then Mt Arapiles in Oz is a great place to pick up gear, you can solo easy classics and find booty galore !