I'll try to answer the previous two questions here.
1) As Beckett continues to list Magic The Gathering cards in its ONLINE price guide, we are monitoring that and when their information is more complete we will transition into using their titles and book value prices. If we have cards that you can see in stock that don't match Beckett's information, please let us know so that we can update our data.
2) If cards aren't in Beckett but are LICENSED and we can identify them, there's a growing effort for inclusion on our site.
Hope this helps!