I don't know. Wasn't Griff only in two episodes?
had to look it up, I thought he was a regular for at least a season, but, I guess it was only 4 episodes
still, I don't know where everyone is getting this "they can't afford him" stuff... the idea that there's anyone or anything that Disney can't afford is funny to me
its more accurate to say they may not be willing to pay that much for a Disney channel show appearance
Adam is probably currently the most successful/recognizable(still living) original cast member
but, why does every one think Adam is some Hollywood diva type who would be all demanding and pricey
he seem like a cool guy, an as Darko mentioned he might have fondness for BMW, an would enjoy reuniting with some of the old cast
on a side note he also has a young daughter who's a Disney fan, she might even watch the show
not that him appearing is really that important to me, or I am campaigning for him or anything (the suggestion was more just a random thought)but, just making a point