As someone who really only ever cares about Culinarian crafts, I feel you. However, in comparison with the other crafting jobs we have it easy. The real issue comes down to do you want to make all of that beautiful Morel Salad to sell for X gil a pop or do you want to make it for your red scrips? In the end, I think it works out to be the same. It's just less of a hassle for us to sit down and whip out some salads than it is to spend 30m at least putting together ONE item (gathering + synthing) only to give it over to a NPC. Some of those items for the other jobs can sell for upwards 200k each. That's kissing a lot of gil goodbye each week. Gil that could be better spent on T5 materia when it's more readily available!