First domain name I registered was giftworld.com.au in 2000, for a joint venture e-commerce store I was doing with a local retailer. Things like beanie babies (anyone remember them), and various other stuff. It lasted about 3 years then was closed down, we were getting some sales but not a lot, and the domain dropped. Makes me wonder what would have happened if we had kept going!
I couple years later I noticed a poster in the local newsagency for a site called giftworld.com.au - they were obviously doing some form of offline marketing for their site. I had a look, different sort of product to we had had, can't remember what exactly.
Randomly thought of it a couple years after that (late 2000's) and it had closed down too. Since then, it's just had one of those "monitisation" sites on it, ie nothing at all. Maybe for the best, domain might be bad luck! haha
Matt