"Blurred Lines"- Stolen?

The Marvin Gaye estate and the singer's family are taking a keen interest in the smash hit of 2013, "Blurred Lines." The song, performed by Thicke and a couple of other guys is supposedly reminiscent of Gaye's "Got to Give it Up." Certainly, I can see a resemblance in the intro but apart from that, it may simply be just the style of the songs. So take a listen below to each and see what you think- is this really plagiarism or just a case of needing-to-make-money-like-the-Jackson-Family type scenario?