Include price guides for all strategy guides, accessories, systems & collectibles especially the Limited Edition versions of all of that But also include the normal versions as well...as much info as possible and that would just be the beginning

Include price guides for all strategy guides, accessories, systems & collectibles and SO MUCH MORE but especially the Limited Edition versions of this stuff but also you have to include all of the normal versions and any other special versions as well and Promotional items and events are also extremely important ...I realize that seems like a LOT but I know without a shadow of a doubt that it can be done...I have been an extreme collector of many different and sometimes completely   opposite collections over the years and I still have each collection and the one thing that I want more than anything and I will guarantee that I am speaking for 90% of all other serious collectors as well is price guides for my collections...please trust me when I tell you that it will DEFINITELY be worth it and you will make a BEYOND EXCELLENT profit....thank you for reading my long message but hopefully it got the point across...there is one known Fact when it comes to collecting items and that is that Collectors DESPERATELY need accurate, high quality, descriptive, reliable and most importantly thorough and extremely detailed, knowledgeable and as complete as humanly possible with every known item included in the price guide...I will put it this way...if you had these price guides right now and they exceeded my expectations I could easily spend A LOT of money right now, like thousands of dollars, without a moment of hesitation especially if you could get them published into magazines and books