I phoned AMEX this am and questioned about upgrading to the Aspire and the rep confirmed for me that the Airline Fee Credit was still a feature of the card. It was not mentioned in the email that I received, which I think is rather odd. The Resort Credit wasn't mentioned either. I did print out the T&C's and it does contain this verbiage:

$250 Airline Fee Credit

Benefit is available to Hilton Honors Aspire Card Members only. To receive statement credits of up to

$250 per calendar year toward incidental air travel fees, Card Member must select one qualifying

airline at www.americanexpress.com/airlinecreditchoice. Only the Basic Card Member or Authorized

Account Manager(s) on the Card Account can select the qualifying airline. Card Members who have

not chosen one qualifying airline will be able to do so at any time. Card Members who have already

selected one qualifying airline will be able to change their choice one time each year in January at

www.americanexpress.com/airlinecreditchoice or by calling the number on the back of the Card. Card

Members who do not change their airline selection will remain with their current airline. Statement

Credits: Incidental air travel fees must be charged to the Card Member on the eligible Card Account

for the benefit to apply. Purchases made by both the Basic and Additional Card Members on the

eligible Card Account are eligible for statement credits. However, each Card Account is eligible for up

to a total of $250 per calendar year in statement credits across all Cards on the Card Account.

Incidental air travel fees must be separate charges from airline ticket charges. Fees not charged by

the Card Member's airline of choice (e.g. wireless internet and fees incurred with airline alliance

partners) do not qualify for statement credits. Incidental air travel fees charged prior to selection of a

qualifying airline are not eligible for statement credits. Airline tickets, upgrades, mileage points

purchases, mileage points transfer fees, gift cards, duty free purchases, and award tickets are not

deemed to be incidental fees. The airline must submit the charge under the appropriate merchant

code, industry code, or required service or product identifier for the charge to be recognized as an

incidental air travel fee. Please allow 2-4 weeks after the qualifying incidental air travel fee is charged

to your Card Account for statement credit(s) to be posted to the Card Account. We rely on airlines to

submit the correct information on airline transactions, so please call the number on the back of the

Card if statement credits have not posted after 4 weeks from the date of purchase. Card Members

remain responsible for timely payment of all charges.