I know Duanerice1 pasted they've done status matches, apparently as an individual leisure traveler, but that's pretty rare. Which is a disincentive to offer a match. The cruise lines probably don't need it (MSC's program excepted), and their status systems are for life, so you wouldn't lose your Celebrity status by cruising MSC. Same as United's partnership with Marriott. The MGM partnership is a co-branding scheme to get you into a non-competing travel segment. If you don't switch, you'll lose the one time status pretty fast. An airline might chose to match (or equally likely let you 'challenge') your 100,000 mile status, but it's because they want you to give them 100,000 miles worth of business next year, and they know if you do it, you'll lose your status with the previous airline and be 'stuck' with them. Status matching exists in the travel industries to encourage business travelers to change loyalty without losing their perks. OK, I'm going to rise to the bait just this once.