I was looking to buy the new Nvidia shield tablet (32gb model). When I go on nvidias site it gives me the option to buy the 16gb model but for the 32gb it gives me a "notify" option. I've been looking online but I'm kinda confused. Does the 32gb model come out at a later date? or are they simply out of stock? Also while we're on the subject, is the 32gb model really worth the extra 100 bucks?