[Chaos]

Regardless of stats per level or whatnot, Aptitude is currently the sole stat that's shaping the value of points. I think just about everyone's repeated so far that Aptitude is like Tactician and/or Style Blending; you have absolutely no reason not to get it, and not picking it up will only punish you in the end. (Sure, you can argue that builds reliant on hardcapping mostly avoid APT, but they have huge holes in their designs by nature)

As far as approaching this point goes, I personally think that just taking Kameron's suggestion-- throwing Aptitude out entirely and upping stats per level to compensate-- would be the cleanest method, especially when it will just allow you to softcap... what, about the same, maybe one more stat than what APT currently allows? Really, the only true loss in the long run would be a stat that boosts EXP gains.

If not that, then limit APT's stat boosts. Say, +1 per 10 scaled APT, or +1 per 8 scaled APT.