Alzrius
The EN World kitten
Adslahnit, you're forgetting that a psionic character using a metapsionic feat needs to expend psionic focus to activate that feat when using the power. That means that, when stacking multiple metapsionic feats (even if it's the same feat multiple times via Metapsionic Freedom), he's still going to need to expend psionic focus for every individual metapsionic feat used with that power.
Since characters normally only have a single psionic focus, that basically means they're extremely limited in using multiple metapsionic feats at once (for example, Epic Psionic Focus grants you an additional psionic focus purely for using a second metapsionic feat on a power, and can be taken multiple times - meaning you'd need to take that feat multiple times before you could really start to stack metapsionic feats).
There are some ways to get around this limitation to various degrees, but it's not easy. The easiest way is to have the Focused Metapsionics feat from High Psionics: Psionic Feats by Dreamscarred Press, which lets you retain psionic focus when using a metapsionic feat, but makes the feat cost an additional 2 power points (counting against your normal limit of power points used for a power).
Using that feat (which need only be taken once) a psionic character can then use a lot more metapsionic feats on a single power, but he'll find that the expanded cost keeps things much more scaled.
Since characters normally only have a single psionic focus, that basically means they're extremely limited in using multiple metapsionic feats at once (for example, Epic Psionic Focus grants you an additional psionic focus purely for using a second metapsionic feat on a power, and can be taken multiple times - meaning you'd need to take that feat multiple times before you could really start to stack metapsionic feats).
There are some ways to get around this limitation to various degrees, but it's not easy. The easiest way is to have the Focused Metapsionics feat from High Psionics: Psionic Feats by Dreamscarred Press, which lets you retain psionic focus when using a metapsionic feat, but makes the feat cost an additional 2 power points (counting against your normal limit of power points used for a power).
Using that feat (which need only be taken once) a psionic character can then use a lot more metapsionic feats on a single power, but he'll find that the expanded cost keeps things much more scaled.