I fly jet blue and it is also 100 each way 

 It is a lot, grr! I sat next to a woman with a baby on her lap that was FREE and kicked and screamed... Yet my dog is expected to sit quietly in a bag under my seat and I pay through the nose. It is NOT fair, I will never be convinced it is. I pay because I want to have my babies with me, but I will never feel it is fair. 
At least with jet blue I can still have a carryon, so I don't have to pay for checked luggage.