I attend 10man ICC most weeks and as any gear pops up that is suitable for me I find it difficult to make the decision whether it is a true upgrade. Giving up some haste for more spell or gaining some critical strike. I never like to take loot from someone who it is truly an upgrade for. I've seen folks during our Naxx days take gear and never put it on when someone else who could really use it rolled for it and lost.
That being said I rolled against someone when I had a level 245 piece and it was an upgrade to 251 and said "no no give it to them its just a slight upgrade for me" Only to find out they had the exact same piece they were upgrading from. What a tangled web I weave.
At this point for most of my raids it is only a slight upgrade for most and I have to lose that mindset that I shouldn't roll on slight upgrades. I don't want to be greedy but I don't want to lose out on the opportunity to improve my toon. I only have 2 healing specs (pve and pvp) so I never roll on moonkin or dps pieces so I really should be more aware when gear comes my way.
Does anyone else spend too much time pondering gear during raids as I do? UGH