The cover is usually made of metal or plastic, but it can also be made from other materials such as ceramic or wood. It has a special design that makes it unique compared to regular covers. These types of covers are often designed to commemorate special occasions like birthdays, weddings, or anniversaries.
Limited-run collectible covers are becoming increasingly popular among comic book collectors because they offer something different than what you would normally find at your local comic shop. Many people who collect these books do so because they want something rare and limited edition. This means there will never be another copy printed after this one is sold out! The price for these books varies depending on how rare they are and how much demand there is for them. Some sellers charge hundreds of dollars for just one issue while others offer discounts when buying multiple issues together. For example, Marvel recently released a set of variant covers featuring characters from their upcoming movie "Captain America Civil War". Each cover featured a different character's face and was limited to only 10,0000 copies each. Fans were able to purchase them online before they went on sale in stores later that day!
A limited-run collectible cover can increase the value of any issue by 10x or more if it's sought after enough. Collectors typically look for rare covers like these because they know that once they sell out, there won't ever be another chance again to get them. If you're looking to add value to your collection without breaking the bank then consider investing in some limited runs! There are several ways to track down limited-edition items including searching eBay, Craigslist, Facebook groups dedicated to finding comics and other memorabilia, or even visiting comic conventions where vendors often have tables set up selling old comics and other collectibles. If you don't live near any major cities with comic conventions, then checking out websites like Amazon or Barnes & Noble may also help find what you need!