Thanks for the responses, I have cover price invested. My overall goal is to downsize my collection and purchase a book or two to keep longterm (another poll for later :-). So, that being said, I want to maximize what I can sell them for so I can give myself the best opportunity to buy the most book for my money. Obviously if I can invest a little and sell for exponentially more that would be great. I know there comes a point where the cost to slab isn't worthwhile. These 2 books seemed to have some upside and I have them in high grades so that's why I just keyed in on these two.