Fuel Pump probelm?,99 Ford Taurus, 3.0 Lit

Hi again, I talked to my wife to see if she had used the Taurus today and she said she had not (so it had been idle since last night). Therefore I went ahead and tried your suggestion (by the way every time I did this, I could hear a faint kind of hissing noise, which I believe was the pump pressurizing) six times, and then cranked engine, it started right way. So what does this mean now, is the pump on it way out or this is just a nuisance (I can put up with a nuisance)? What would worry me would be if the pump dies say as one is driving at 80MI/hr in middle of high way!