I'm struggling with the same thing here at 50. I went for Culinarian thinking it would be great for end game once you max gear, but maybe the market hasn't caught up yet.

They really have to make either food buffs not fade when you die, extending food times/qty upon crafting, or something making it more important. I play a PLD too and I'd definitely not want to use a food item worth 2-3k and fade when you die. The likelihood of a wipe is very high in end-game content with a poor party.

The foods I'd find worth making are those for gatherers and crafters (cuz they won't die), but even then, they only need so much. All the DoW guys are pretty cheap and don't need food, they just want gear.