I wish I could say I didn't expect the above response from people with that flag under their name. Try to separate what I'm saying from the people who are suggesting that Parker isn't a good player and let's go from there.
Parker complained publicly that the team needed more help, and it was perfectly obvious at the time that the Spurs responded to it because they wanted to show a commitment to Parker that they were willing to do what was required to help the team win so that he wouldn't leave.
"EVERYBODY" has been thinking the same thing for the previous 20 years that the Spurs wouldn't spend money; it took Parker's veiled threat to get them to do it. Once the Spurs did that, not only did Parker completely fail to show up after a lot of time off, he then suggested that he wouldn't even entertain the idea of an extension.
He's likely to play really well this season since he'll be playing for himself instead of the team he asked to open their pursestrings, but unless that play is enough to win the Spurs a le, they need to get value for him before he bails.