I agree shooting helps age (Steph is 34, Korver played well past age 35, etc.), but Paying a 36 year old $60MM will take away flexibility. If it put us in contention for a chip, then I'd do it, but I don't think Dame gets us there).
As far as the Chris Paul comparison, his defense has dropped a lot, but he plays really smart, and his elite passing, handle and midrange has sustained him, Dame does shoot better, but is not as good in the mid range or as good of a passer as CP3. And CP3 is making $30MM per, not $60mm! That is a big chunk of cap.
If dame was at $35MM per, I'd think it was great as they'd still have flexibility to get other pieces. $60MM makes it hard to retain current players and acquire new ones and he may be hard to trade for anything (think Conley).
That said, I would have preferred to pay CP3 $30MM a year vs Conley at $21MM.