Etiquette of rolling on item you already have?

[Reptak]

I've wondered about this often, seldom seen it discussed, and it hasn't really come up yet, but I would like to know ahead of time. Do you think it is ok to roll on an item you already have under these circumstances:

• Pickup group
• Droppable item
• Lore or not lore
• Big ticket item [~10k +]

A good example would a fungi tunic or SoS. Logistics aside of being able to loot it, do you think it is cool to to /ran on it? Obviously among friends, this issue is moot.

Common sense would tell me in a PUG, it would be fine. Something just smells a little wrong. Big ticket items are commonly sold for pp which would allow you to get things you need so it seems to me all should be able to /ran.

Just curious what the general consensus is. Not trying to be greedy here, and in general it seems a little unfair when one 1 party member gets a windfall (would be nice in a PUG to try and sell quick and split pp), but I would think it more fair that all are allowed to roll.