Even for family/friend transfers, most airlines charge $.01/mile plus a $25 transaction fee. IF you plan to use it for a cheap domestic redemption, it is not worth it. After being on FT, I have begun to pick up my mileage accumulating account very carefully.
Consider transferring AA miles to Hilton Honors account in blocks of 5,000 miles. You will get 2 HH points for every AA mile. However, there is a $25 transaction fee. You may be able to utilize the points for a hotel stay. Please research it before transferring.
If you have Amex MR, consider topping off your DL skymiles account.