Posted for "colyncase on earthlink" <colyncase@earthlink.net>:

 I don't know why the gps unit goes offline instead of just backing off to
 non-Waas but as to the
 use it or lose it option I think we should use it.
 sooner or later we will end up paying for all this IFR stuff.   I would
 rather have WAAS which
 has a prayer of working at my airport than ILS which will never be there.
 ,,,but more to the point
 I would rather not have to pay a fee for keeping every ILS that I use
 running.