I am collecting armors my self (in fact I am collecting everything in Morrowind). I went into the construction set and now have a complete list of all items in the game i.e. all weapons, all armor pieces, all rings, robes, books etc.
So I collect one of each. Basically I have visited everything that is a cave, building ruin, house etc and ransacked them clean almost (I been playing the same game for almost a year).
I eventually want to have one of everything! Of course there are some things that you need to kill people to get so its a good idea to wait until you finished alle the quests to start killing. Then there are a few things that disappear for ever once used in a quest and you cant get them even if you kill someone so then you are "justified" to use the console just for completeness purposes. I dont like to do that (I did it once for a silver bowl because I found it and then sold it to someone and couldnt locate it).