I'll warn you right now, I am merely just speculating on the following:
I have never really used faction pos modules. I wasn't a serious enough POS user to justify the added cost. In my opinion, that is going to change for me. Getting the most out of your modules now becomes critical to profits. All the time bonus changes are well worth using POS modules. The added job costings in NPC stations makes it even more alluring. I have been watching Hyasyoda labs and while in the last 30 days, their price has remained pretty flat. If you go back 90 days, there was some rather large fluctuations. I believe that was before the Kronos changes were originaly announced (I don't feel like looking back at history). I feel that the supply remained a constant and demand waned, causing a dip in prices. I am going to wait until the dust of Crius settles and see where they finally shake out. I think the supply will jump once POS owners don't need a whole POS dedicated to research usage. Thats just my thoughts.
Here is the 30 and 90 day price composites for POS modules that I made on EVE Markets website.
|30 Day Average|
|90 Day Average|