Hi Barry, I do collect the variations. I have many almost identical covers for many casinos. Below are four clear examples from Avi in Laughlin. At quick glance one may think they are the same, however each has a distinct manumark and other variations including the a website address/no website address, hotel/casino, resort/casino, etc.. I am finding variations all the time and consider each as a different book. It's fun looking for them and finding them. As far as leaving the book intact vs. removing the matches I opt for removal, it makes sense when you get thousand's of them in your collection. I do have full books as well that are the features or the harder to find or really old books. Mark and Pam thanks for thinking of me with Barrys post BArry, if you need any specific NV casino covers LMK I have hundreds of dupes, Enjoy, Eric