I got LD microchipped when I had him neutered. The price was cheaper at my vet's if you had it done while they were doing surgery. Since he was a stray, I felt it would be in my best interest to have him chipped. And it does prove ownership. There is a story on my chip that the man who started this company lost his dog who was chipped. When the dog was found and taken to the pound, six people went to claim him, but since he was chipped, ownership was proved and the real owner got him back. Had he not been chipped, one of the other six people might have gotten him.

I think I'm going to chip my cats too because they don't wear collars or tags since they're indoor cats, but I once lost a cat (Cocoa - called her Coca-Cola too) because a man who was working at my house left the front door open. My cat did come back on her own after two months (how I will never know since she'd never been outside before), but I don't want to ever go through that again.