Whats the difference between sharing and gifting miles? M girlfriend has 10k mile sin her account that are about to expire. whats he cheapest way for me to take them? From what i have read, gifting is the way to go. please confirm.

share-
Now share your miles with family and friends! Use the shareAAmilesŪ program to transfer up to 60,000 miles and receive up to 15,000 miles, per calendar year. Please allow 7 days for the miles to post to each recipient's account.
-sliding scale cost.

gift-
Looking for the perfect gift, or a unique way to reward employees or customers? With the giftAAmiles program you can give up to 40,000 AAdvantage miles per member, per calendar year. The giftAAmiles program lets you give the gift of travel to those who matter most to you or reward those who most deserve it. Please allow 72 hours for miles to post to each recipient's account.$30 per transaction