Both the Jetpack and Stealth Boy upgrades use a ridiculous amount of Action Points, meaning if you don't have a lot of points invested in Agility and possibly Action Boy then you will not be getting very good value out of these upgrades, Bethesda, this is simply ridiculous, not only do the vast majority of builds that utilize power armor utilize agility almost in no fashion what-so-ever, but on top of this it's Power Armor, my character should not be expending any energy at all for these attributes, so after reaching level 41 and having invested all 4 ranks in the science and armor perk and I now find I have to have a bunch of points invested in Agility as well? This simply doesn't make any sense Bethesda.
The Jet Pack already uses up Fusion Cores like they're water and the Stealth Boy only works when you're crouched and standing still, if I had a high Agility build why would I be using Power Armor in the first place?