I am not a top 5 guild progression player. I never will be. However, I try to read up on where I am going, and to be gemmed, enchanted, and take consumables.
I also personally feel that the hardest role in the game today is healer.
- Tanking is really not much different from Northrend. Good tanks already know about fire, and how to get out of it.
- DPS are asked to CC, interupt single target or may be dot up a couple of mobs instead of AOE, and get out of the fire. With the exception of having to learn that fire hurts, it still isn't that hard.
- Healers have been hit - hard. They are not meant to keep everyone at 100%. Their spells have been played with and re-organised. They are meant to run OOM, and to let DPS die. Some healers are enjoying the challange, but many others are daunted by the task (I am both daunted and enjoying it).
Unless I am running farm content (and I rarely farm), I will personally provide group consumables, applied at the start of the run, and after every wipe:
- Drums of the wild where there is no druid : Cost - negligible.
- Runescroll of Fortitude#2 where there is no priest : 100g per use
- Goblin Barbeque (or equivilant) : 50g per application. Alternatively you can pick up good food for 5g per use.
A wipe costs very roughly another 15g for personal repairs. So, a run on my healing priest with a druid tank will cost me 80g to start, and 95g per wipe. If you are in Arozcaldo (recruiting for DPS), I will pay for a wipe with guild repairs, and I will provide group buffs. It is not that expensive to take a few elixirs.
Does it matter much if you are missing a single buff or enchant? Probably not, unless you miss a kill by 1%
Does it hurt if you are missing 5 buffs or enchants? (Wild, Fortitude, Food Stamina + Stat, Guardian elixir, Battle Elixir) Not always, unless you miss a kill by 5%
There is already some farm content. I don't usually run normal dungeons on my tank or healer, but when I do, I don't bother with personal consumables. If your content is truly farm, I don't expect you to use consumables either.
Consumables also make for a faster run. More DPS, less healing required both mean less time watching a healer drink.
Healers do not currently have the tools to heal stupid. A death in a heroic instance is due to too much damage taken for the healer to heal. Wipes start with toon deaths. When you have died in a run, can you honestly say that you did everything you could to help your healer?
Yes? But no food buff or guardian elixir? You died because the healer was busy or OOM. Without buffing with consumables, you directly contribute to the healers problems.
You can pay for food buff (5g) plus Guardian elixir (15g) plus Battle Elixir (15g) easily and quickly: Two daily quests, or 1 stack of gathered mats will cover this.
If you have time to run dungeons or raid, you have time to pay for consumables. Slackers don't bother with consumables.