Arcainine power up
Arcanine 1689 CP with 96% IVs with FF/Flamethrower. It's 60k stardust to max to around 2200 CP. Since after the CP nerf and Rhydon and Vapor getting buffed, is it worth saving my stardust for him or should I use it somewhere else????
Answers
As Gobbles said, it depends on whether you have another strong fire-type attacker or not.
If you do, then it's probably not necessary to max Arcanine in the current meta, as grass defenders are few and Vaporeons and Rhydons are many. This doesn't mean that maxing it is wrong, though - it's a strong mon and investing in it is not a waste in any case.
If you don't have another strong fire-type, then it's probably worth it to max Arcanine because it will demolish the grass types you do meet.
I wouldn't max it only to use on defense. Its CP is not huge and it's run over by many common attackers. No double weakness though.