I know the tripple base miles has been discussed before, but it seems possible to earn up to 5,000 miles round trip on the Shuttle if you registered for the Fly With Delta Promotion and fly before 7/31.

Round Trip: 1,000 miles
Base Mile Bous: 2,000 miles
Online Booking Bonus: 1,000 miles
Fly with Delta Promotion: 1,000 miles
Total Miles Earned: 5,000 miles (3,000 Base Miles)

I know I'm doing at least one trip before the end of July. My appologizes if this has been discusssed before, but it seems almost too good to be true that you can pick up 5k miles for $115. (Thats even cheaper than buying them for an award)