P1.2-B Presidential plane eyed

We hear Malacanang is eyeing the purchase of a P1.2-Billion presidential plane, akin to that of Airforce One.
Ten percent of P1.2-Billion is P120-million.
Assuming that President Arroyo is stepping down in June next year, why on Earth would she be interested in purchasing a new plane that will cost taxpayers P1.2-billion.
How many foreign trips will she be taking with less than one year left in her term?
That is if, she really is stepping down.
What could be a more enticing reason to engage in a billion peso sale transaction using taxpayers' money, at the end of her term?
This doesn't look like a bad midnight sale transaction, does it?