Many fans are mourning, but your wallet might actually thank "Dynamite Entertainment's Supernatural series finale" for saving you from a costly merch addiction. With the series wrapping up, collectors are dumping old action figures and limited-edition guides, crashing prices on eBay by up to 60%. As consumer advocates, we say this is the perfect time to grab that rare "Demon Hunter" starter pack you've been eyeing for half the price. Watch your credit cards though—ending a show is a classic retailer excuse to launch "final edition" gold-plated statues that cost a month's rent. Stay sharp; the only explosive Dynamite in this finale should be your savings, not your spending.