The search function is not working properly (links send you into the warp without a Gellar field) so I’ll just throw this out there.
How do other GM’s tackle the issue of power armour for acolytes? I feel that it should be exceedingly rare (and portray it thus in my sessions) and personally feel that only inquisitors (and then only those with a century or so of duty and goodwill rather than callow, newly minted inquisitors) can acquire such a suit and the necessary maintenance. Yet the rules make them more or less readily available if you have the cash and the time to find one.
So how to make it truly rare and/or less than attractive?
I am currently considering adding the terminator armour rule that you can’t dodge, only parry, based on the fact that humans lack the black carapace and thus simply lack the instinctive fine motor control required to dodge bullets. In addition, each suit is a custom job and thus only given as a reward by either the mechanicus or a suitably powerful organization.
And to prevent them from picking a fight with a power armour equipped NPC just to loot the corpse (a popular stratagem I am sorry to say), I feel the use & maintenance of power armour suits should be subject to pacts between the wearer and the mechanicus which are not transferable…