Right now SkyTeam member and Delta partner Aerolineas Argentinas is promoting an aggressive new status match offer. They will give you a year of elite status based on the status you have with another airline (that is not a part of the SkyTeam alliance) or a hotel chain. Willingness to match against, say, Hilton Honors is unique, easy, and aggressive.
SkyTeam elite status makes travel easier on Delta.