sold peice just like this today for 3mil top ... can get mods quite easily
Just for kicks and giggles I did a search on that-site-which-shall-forever-remain-nameless, on Atlantic, and in ten pages of armour I didn't find anything that really matched, and only a few that were even close, and based on the prices I saw, if you only got 3 mil for a piece "just like this", you didn't do very well. My guess is the piece you sold isn't as close to what I posted here as your statement makes it appear to be.
The problem with pricing armour is the same problem as there is with pricing any of the non artifact items. It is pretty hard to ever find any two that are alike, so what you get for a piece will depend on whether it is what someone wants, and what they are willing to pay. Artifact prices tend to be pretty set within a certain range at any given time.
The same is true for pets. I was asking 20 mil for a truly exceptional, fully trained beetle, and I had several people basically tell me I was nuts for asking that price, but I knew, based on a lot of experience, exactly how difficult it was to find what I was selling, and eventually I did get the price I was asking for from someone who also understood how difficult it was to find what I was selling.
I'm guessing I could sell the piece quite quickly for 10 mil, but with some patience, I could get 20 - 40 mil for it.