Well, frankly, it seems to me that you guys need a nonmusician here to figure this out. What makes a song a standard is more than just musicians playing it a lot, it's got to be well known by much of the public. The listening public is not just divided between "race music" and popular adaptions thereof anymore. The music has been split along generational lines ever since Rock and Roll became big, and the fractures have continued, until even the bland "top ten" pop we all love to ridicule is only heard by a minority of the public. Fittingly enough, the only songs that are considered "standards" reached that status prior to the splintering. There simply can't be any "standards" any more on the level of Porter, Rodgers & Hart, etc. tunes, because no music reaches a wide enough audience to become a standard.
In other words, it ain't you guys; it's us...