Millsap is a very good basketball player. Age is not really relevant because he's a half year rental. He'd greatly improve our rebounding. He's not a rim protector, but Horford is doing a good job of that. Anyone who thinks Kris Humphries is a better basketball player obviously has really good drugs. I don't know who this "consistent double-double player" is who you think is available, but they're few and far between.
14th in the Association in RPM. If you can get him at a reasonable price, I think it makes us a contender.
You dont trade for Millsap unless you plan to try to extend him so age is absolutely relevant.
I disagree. For a reasonable price like the Memphis pick, Amir, and Rozier (plus Young as salary filler), it's not the end of the world if he walks or you go a different direction, so age doesn't matter as much. Furthermore, having Millsap on the roster for half a season helps the team make a better decision about him in free agency. If the team is healthy with Millsap, how well do they perform in the playoffs? How much maintenance do the trainers have to do on him? If you get to the conference finals vs. Cleveland, can you convince Blake Griffin that having him instead of Millsap would put you over the edge?
Age isn't irrelevant, but trading for him does not create a requirement that he be re-signed.