In Foster ex rel. Foster v. Weir, 212 Ariz. 193, 195-97, PP4-19, 129 P.3d 482, 484-86 (App. 2006), the Court construed Rule 54(f)(2). The Court rejected the argument that expert fees "for testifying at trial," under Rule 54(f)(2), should include "the dramatic shift in responsibility for experts' preparation expenses." Id. at 197, P13, 129 P.3d at 486. Although Rule 68(d) was not at issue, the Court noted, consistent with our holding here, that Rule 68(d) "provides such a mechanism" for the recovery of experts' preparation expenses. Id. at 196, P12, 129 P.3d at 485.