Agree to that, what he shows up during Olympics gives him that chance to get that contract outside NBA, it's better to take that instead of keep sitting down and watch the game, I mean aside from the money there's no reason to stay if he's not going to get that minutes and give him that chance to showcase his talents.
Yup, it's all about getting playing time. I'm sure that players like him want to earn good money but aside from that, the love for the game and actually play. I wish him luck playing in Greece and this is what happens to most of the NBA players that will get out of the league, they won't just be out without having some nice contracts in offshore leagues.
As long as they still wanted to play, they can still showcase their talents outside NBA, though not a big or widely covers like NBA but still they've got the chance to continue playing the game, and if they will perform well there's still opportunities that might be open up if another team will call them back playing for any NBA franchise.
Let see if what will be his fate after this contract expires, still a good chance to continue playing and show his love for this sport.