Esquire's Editor In Chief David Granger says the anniversary content in most issues will be confined to special sections and disputes lumping Esquire in with last year's models. "70's an even number, man," he says. "If I thought I was hammering the point home too much I wouldn't be doing it." Some observers suggest all the commemoration/self-congratulation may weary readers: How much looking-back-with-a-martini-in-hand can one take? According to one media buyer-to whom The Buzz figures such packages are geared toward-quite a bit. "I always look for reasons to look back with a martini in hand," shrugs Pam McNeely, senior VP of Interpublic Group of Cos.' Dailey & Associates, Los Angeles.