Seller's feedback for reference: https://www.ebay.com/fdbk/feedback_profile/tracy_monkey?filter=feedback_page:RECEIVED_AS_SELLER&_trksid=p2047675.l2560

I'd say their story about buying a bunch when it came out is probably true (I want to say I paid like $70 for mine several years ago) and had the option to buy more but bought BTC instead  

There are definitely plenty of users here who have pulled the same move on various magazines or other collectibles. (Personally I have an embarrassingly large hoard of certain magazines being stored in my parent's basement.)

30 would be 3% of the total number in existence (1000) which isn't outrageous. If you scan the cover, back cover and spine (I'm assuming it's in the plastic wrap) I'm sure people here would be more than happy to take a look at it.