For fun. There is no prestige as far as I'm concerned.
I don't care what titles people have, or how "expensive" their stuff is. The only thing I might notice at all, is a nice-looking set of armour/dye - because it looks good, not because I see any prestige in it.
Likewise, I don't expect anybody to pay any attention to what I have or what I wear... and if they do, their opinion doesn't mean anything to me.
I think the point is - if you DO decide to go for them, most of them are indeed "easy" to get: You don't need skill, only time.