PSG could have made a lot of money by selling Mbappe. But PSG does not seem interested in making money. They want to win the Champions League title. They will try their best to keep Mbappe in the team. My guess is that PSG management is still optimistic about Mbappe that maybe PSG will renew their contract with them and decide to stay at PSG.
yes, but this game will last as long as there is money to waste
it can't last forever
if it's a rich person's game, he may get tired sooner or later
it is not healthy to throw money like this, it is not sustainable and as a PSG fan I would be afraid