Is Level 60 max rage level?

[Xargon]

I've been wondering as well if it would be better to stop using rage skills until I get the two last ones (in Hades, rage at lvl 40+ right now). I don't want the upgrades for the rest of the skills anyway... (either I don't use them or the cost goes up too much or the upgrade effect is useless)

I think you should get access to the last rage skills earlier - or at least there should be skill-specific leveling, so you can level the last skills properly.