I recently started a new job and people commented on the pen I use, its nothing too fancy just a brushed steel Lamy 2000 rollerball (~$300) with a leather pouch.
Not sure they are taking the piss or if they have just never seen someone not writing with something other than a bic but i am interested to hear what others do or perceive.
I think using a $300 pen is unusual enough to get a mention (they would probably expect it is an anniversary gift or a leaving gift from your old job or something like that). I think I have a nice pen too but it is only a $50 fountain pen