When a person or persons, through an enterprise, engage in a pattern of racketeering activity for which the predicate offenses are the promotion or wholesale promotion of obscenity, pursuant to article 17 of this title, the difference in the fair market value of real property in the vicinity of the location of such enterprise from what the value would be if such enterprise or any part thereof were not located in the vicinity, as established by the opinion testimony of experts or otherwise, shall be deemed a compensable injury for which the owners of victimized real property can exercise all civil remedies set forth in article 17 of this title, in addition to any other measure of damages provable pursuant to article 17 of this title.