GRMN p/e is 19????

why do RIMM, GOOG, AAPL all have p/e of 50 and GRMN is at 19?
GRMN has much better PR, net profit margin, more new products.
Big deal they have competition or their margins may go down all these companies have the same issues do they not?

 

when the income drops a bit more, the pe will go up.

 

who said the income is going down, I thought they are growing and expanding like crazy?