As a value added, you should seriously consider releasing a simple app that members can access their purchased compendium products. Right now only D&D beyond offers this. Yes, I know they are not a direct competitor of yours but they are an indirect competitor. They siphon disposable funds from your users to access online tools you are not able to provide. A common discussion I have with fellow players is why do I have to spend money on roll20 and D&D beyond as well as hard cover books etc.... Before you get into the specifics of not apples to apple and OGL... Yes I get it. But what is being missed is the opportunity to hone in on market share from an indirect competitor who is effecting your over all sales. I currently own the 3 core hard copy books, and have currently purchased the same on roll20 (because I see the value in what roll20 offers). I am interested in getting additional compendiums like Xanathar's Guide to Everything, but I do not see the value in getting a hard copy to reference, as well as the roll20 version. Currently the only value added for the roll20 version is to use it while playing the game itself, not as a stand alone reference resource. If you were to create the app that members can search their purchases compendiums, you would increase your market share by providing the required need of a resource book that users can access without buying from D&D beyond or the hard copies. It just makes business sense.