I love the direction NBA offenses have gone. The post game is still important, but teams use it as much to create offense elsewhere as to actually score out of the post. Guys like LeBron, Wesley Matthews, and Carmelo are formidable post-up guys. It's no long behemoths bullying their way to the basket; the post-up game rewards big men who can pass, and there are more now than ever. Of course, it's still primarily a pick-and-roll game, but I think that's a positive - it rewards smart playmakers, and you see a whole lot of different styles showcased, from Tyson Chandler's assaults on the rim, to KG's pick-and-pop, to Steph Curry creating his own shot.
And the power forward post up game is still a weapon; Al Jefferson is an automatic double team every time he gets the ball down low. The key is being able to make other teams pay for that approach.