Paris Hilton -- I Got a New $8,000 Bitch (PHOTO + VIDEO)

Puppy love ain't cheap for Paris Hilton -- not when she's scooping up 12 ounces of chihuahua for $8k ... very delicately, of course. TMZ has learned the 4 month old pup was delivered to Paris in NYC on Monday from a boutique teacup breeder.…