Would you believe that in London they auction it? The Evening Standard has reported that bags lost at Heathrow and not reunited with their owners within three months (or sometimes less) are auctioned off! Apparently, electronic equipment is removed from the bags and sold separately. So maybe you can try some auction houses in London for your missing bags and electronic equipment!
If you are in the US, you might like to try the Unclaimed Baggage Center in Scottsboro in Alabama who, according to their web site, "buy unclaimed baggage and cargo by the truckload" including jewelry, clothing and electronic goods.
I am starting to wonder how much money the airlines are making from unclaimed baggage and if this has anything to do with why some airlines lose so many bags!