Perhaps this niche leaves an opening for a potential business venture?
Such a service would be invaluable to many collector's of games and Dvd's, and you could provide a unique service where collector's can upload lists of every item they own along with pictures for insurance purposes, and add / remove them easily whenever an item is bought or sold, thus keeping the insurance policy up-to-date, whilst also keeping track of your collection at the same time!
Each item could be given a value, which would then be authenticated by an expert (Potential for a new career there), and you pay a percentage of every game listed for your insurance.
The only drawback with this I see is that someone shifty could easily manipulate this system by saying they own games which they don't, or by selling a particular valuable game or games and then claiming that they had been stolen or damaged...