If you did sign the $7500 now because you absolutely needed the money to finish school, you could always go somewhere else later that was offering more money and pay back the $7500 with the larger bonus checks that are being paid out elsewhere. AA wholly owned are paying $20k, so you could pay back the $7500 with that. But, you would burn a bridge before you ever really got in the industry. It is also ethically wrong.

Pedro is right - you can get 80-100 hours a month and get in the game a lot faster.