Riki is right about this. Honestly, in the past 3 months, i haven't been able to buy more than 1-3 of these at a time. It is by far easiest way to 100 as well since it is only 100 synth you can buy all ingreds. from AH. Cursed soup isn't bad on the gil side, but with Red Curry you can actually make a profit, on our server at least.
this food is hard to get you will end up camping the AH or this website to find out if it is in stock and is prob the best way to 100. please for your own sake people dont use it to make ANYTHING other than red curry. You will only be shooting yourself for the 99-100 range because this suff is like 2-4 a day, rare food and that cant suport more than one crafter never mind more than one synth, buy it fine, just dont use it unless its for the 100 range curry is by far the best use for this