Don't they assign points on some basis? I don't really understand how it works, but I've seen people grousing about the points not properly reflecting scarcity or grade or something.
Points are assigned to books generally on a value/scarcity/importance scale. A lot of books are incorrectly reflected in the registry point wise, so people ask for updates. Constant update requests to garbage like the Walking Dead I will never understand though. All in all the registry is fun. Brilliant marketing strategy by CGC.
If the owner of the Detective 27 9.2 were to register that single book, that book alone would dwarf the total amount of registry points the theft victim has accumulated. Actually he would probably rank in the top 10 positions overall with just 1 book.
Doug Schmell ranked #1 overall for several years with his super high grade SA, until a boardie briefly registered his books that completely destroyed Schmell's ranking. This to say that there are people out the there with killer collections that if they registered would certainly outshine the likes of the guy who's collection was stolen. "#1 registry sets" -- all very relative.