Use several price guide sources to find an item's value. According to Carlton, a current printed price guide is a good starting point, but "online sales and auctions provide up-to-date pricing and highlight trends on what collectors are buying right now." For example, he points out that items like "Star Wars" children's furniture from the 1970s rarely hits the collector's market, and may sell above guide levels due to demand. Some guide options are books including Carlton's "Super Collector's Wishbook" and "Gus and Duncan's Guide to Star Wars Collectibles," as well as auction websites like eBay.
Identify your collectible as vintage or modern. Items made during the time of the original trilogy (1977-1986) are considered "vintage" by collectors. Items released after the "Star Wars revival" (which began around 1995) are considered "modern" collectibles. Vintage collectibles tend to be rare and are often (but not always) more valuable than modern collectibles.
Separate your collectibles by packaged and loose (unpackaged) items. Do not confuse price guide values for packaged "Star Wars" items as a guide for loose items. "Packaged items like toy vehicles can be classified as mint in box (MIB), which is an opened item with original packaging, and mint in sealed box (MISB), which is a completely unopened item," Carlton said. "That also makes a difference in value."
Grade the collectible's condition from one through 10, with one (C-1) being "poor" and 10 (C-10) being "mint." Grading condition can be subjective but most price guides provide some grading standard guidelines. "Star Wars" action figures, for example, will take a grading hit if it has paint loss and loose limbs.
Collect accessories for any loose toys. Loose "Star Wars" figures and vehicles in particular can be worth significantly more if all weapons and accessories are present. Price guides usually include listings and/or pictures of accessories that should be included with an item to make it complete.