Its always better to be safe than sorry.
I see so many ebay sellers with a feedback rating of zero selling a Sony Vaio or some other desirable high-priced item.
And because it is 'desirable' people seem to forget themselves, and bid on it. I always wonder if they ever get the item after transferring over a 1000 pounds to a stranger's bank account...
Sure, everyone has to start somewhere. But the first item I sold on ebay was a CD or something...
Sorry, I digress.