Its a good point Icthyes, although the tyres look to drop off so much once they are gone.
However taking your point, the guy who can squeeze an extra lap out of a set could have an advantage. Although I think the ability to overtake will be a decider as with only a dozen or so laps to play with you cannot afford to waste any behind an out of position slower car.
This means we can expect to see lots of action after a short safety car period in which the front runners did not have the chance to pit, but some quite handy mid fielders did.