I do belive it is a 'cheap' tactic, however, as Big D said, why take the time to acquire these items if you won't use them. Let's face it, getting KOTR takes about 8 hours out of someone's life, why-oh-why would you waste that time, if you weren't going to use it often? Sure, there's the WEAPONs, but surely KOTR was put into the game for a greater purpose than elimination of two bosses. Nevertheless, I never have KOTR equipped when fighting Jenova or Sephiroth in the Northern Crater.