Audible Members get $5 coupon with select pre-order, including The Hobbit
The Hobbit is not pre-order (it's available immediately) but is part of the promotion, their support assured me that if I don't get the coupon I can reach out at the end of the month to have it manually credited. There are some other nice pre-orders available.
Offer available until September 24, 2020, at 11:59 p.m. PT. Offer available to Audible Premium Plus members enrolled in a paid membership at the time of pre-order (Customers enrolled in a free trial are not eligible for this promotion.). Eligible members who pre-order an Audible title that has a value of $5 USD or more between September 21, 2020, at 12:01 a.m. PT and September 24, 2020, at 11:59 p.m. PT will receive a promotional code for a $5 USD coupon via email on or around September 30, 2020. You must redeem and apply the promotional code towards a qualifying purchase by November 28, 2020. You may redeem the promotional code by copying the promotional code and pasting it into https://www.audible.com/promo/redemption / clicking the link in the email. This will add the coupon to your account. You must be opted in to receive promotional emails in order to obtain your promotional code. The coupon applies only to cash purchases of audio products sold on audible.com (not including gift purchases). If you have cancelled your pre-order prior to the date of coupon delivery, you will not be eligible to receive this offer. Coupons cannot be resold, transferred for value, redeemed for cash or applied to any other Audible account. Offer may not be combined with other offers and is limited to one per customer and Audible account. Audible reserves the right to modify or cancel the offer at any time. If you violate any of these terms, the offer will be invalid.