I have a couple questions. I need expert help! 
I think this trip my bf and I are finally going to upgrade to Premium APs. We go enough! This trip we'll have 3 day hoppers. I know to wait and use our EE, then upgrade. But my question is regarding the price. We usually get our hoppers through AAA, which is discounted to maybe $159. I know the retail price is what, $179? So when we go to upgrade will they charge from the retail price? I'm guessing yes, because how would they know how much we paid?
My second question. Are there any other perks we'll immediately get? I know with Premium we'll get 10% off food, merchandise (right?) so it would make sense to upgrade right after EE so we could enjoy those benefits immediately. I saw someone mention that they got a 20% off merchandise coupon for renewing their AP (I know, a little different); any chance we'll get that?
Thank you all in advance! I'm so excited to have my own little card!!

I think this trip my bf and I are finally going to upgrade to Premium APs. We go enough! This trip we'll have 3 day hoppers. I know to wait and use our EE, then upgrade. But my question is regarding the price. We usually get our hoppers through AAA, which is discounted to maybe $159. I know the retail price is what, $179? So when we go to upgrade will they charge from the retail price? I'm guessing yes, because how would they know how much we paid?
My second question. Are there any other perks we'll immediately get? I know with Premium we'll get 10% off food, merchandise (right?) so it would make sense to upgrade right after EE so we could enjoy those benefits immediately. I saw someone mention that they got a 20% off merchandise coupon for renewing their AP (I know, a little different); any chance we'll get that?
Thank you all in advance! I'm so excited to have my own little card!!