I love what Smith brings to the Cowboys. He always won with strength, length, and leverage, so it really isn’t surprising that he can still do it. He was never a guy that won with strictly speed, where losing a step,would cause him to fall off a lot.
Aldon might be able to play several more years, actually. I think he has a few years left at high production.
If a team doesn’t get the ball out of the QB’s hand in less than two seconds, the Dallas pass rush is going to hit the QB a lot.
If Smith has a few more games where it is clear that he still has it... I’d try to get him signed for a couple more years and up this year’s pay. With the prospect of making more this season and being grateful for the chance to come back, he might not try to break the bank.