OPINION

On June 13, 2007, plaintiff-appellants Terry and Raymond Williams instituted this action by filing a complaint against Amerisuites, Hyatt Corporation, and Global Hyatt Corporation. On its own motion, the District Court dismissed the complaint without prejudice because the complaint asserted jurisdiction under 28 U.S.C. § 1332 but did not properly allege the citizenship of each party. The plaintiffs filed an amended complaint on June 29, 2007, that corrected some of the omissions, but still failed properly to allege the citizenship of Raymond Williams. Accordingly, the District Court dismissed the amended complaint on July 5, 2007. On July 18, 2007, the plaintiffs filed a motion to reinstate the complaint and for leave to file a second amended complaint. The District Court construed this motion as one for relief from judgment under Federal Rule of Civil Procedure 60(b), or, alternatively, for reconsideration under District of New Jersey Local Civil Rule 7.1(i), and denied the motion because the plaintiffs had not advanced any cause for relief cognizable under either rule.

In its decision, the District Court noted that the plaintiffs filed a bare motion without any accompanying statement of why the motion should be granted. This was unwise, because arguments are only preserved for appeal if they are first made to the District Court. See, e.g., DIRECTV, Inc. v. Seijas, 508 F.3d 123, 125 n. 1 (3d Cir. 2007). In choosing not to make any arguments to the District Court, the plaintiffs failed to preserve any arguments for appeal. Moreover, whether the plaintiffs’ motion is construed as one to reconsider, alter, or grant relief from an otherwise final judgment, the plaintiffs, as the moving parties, bore the burden of demonstrating their entitlement to relief. Because the plaintiffs failed to advance any reason for disturbing the judgment, we cannot fault the District Court for declining to do so.

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For the foregoing reasons, we will affirm the District Court’s order denying the *74 plaintiffs’ motion to reinstate the complaint and to file a second amended complaint.