they also have feasts like that make your group bigger in size or smaller in size.

Valkry- You haven't ran into a fight that you don't need a little extra dps in yet? The 2nd and final boss in heroic mgt I always make sure I have food buffs up. It is just a little more dps that makes sure I get the job done. Also the way that I look at it is that if that extra boost keeps me from wiping then I saved money. ~1g (or 5g for the whole group) for food vs ~3-4g repair (or 15-20g for the group). A

Also even if you don't use them for your team I am sure that these spices will be hot. If you are only allowed 10 food buffs per day if you are trying to learn new content you are going to blast through those easily.