Kim Kardashian's engagement to basketball beau Kris Humphries has already netted her some big bucks. The Hollywood Reporter says she pocketed a cool $300,000 for the exclusive engagement snaps featured in last week's People magazine (that's approximately $1.7 million less than the price of her 20.5-carat engagement ring). The $300,000 figure seems to be a lucky one for the Kardashian clan: Kourtney and Khloe reportedly received the same amount for their own print exclusives (baby and wedding, respectively). But has the inevitable Kardashian backlash already begun? A source tells the Reporter that Kim's People cover story "underperformed" on newsstands, with fewer than average copies sold.