TNB,
Of course its the PICs decision whether to fly or not, but having a friendly forecaster on the end of the phone who can advise you 'VFR flight not recommended' does help the inexperienced PIC in arriving at his or her decision to go or not. If I'm planning a VFR flight from A to B and the forcaster advises me 'VFR not advised', then I'll stop right there, or file for IFR assuming freezing levels, SIGMETS / AIRMETS etc are within my or my aircrafts tollerances. My point was that its certainly more helpful and faster to talk to someone rather than trying to download all the pertinent information from the Web, and then trying to sift through and understand it.