Just dropping in to make sure you don't think mileage multiplier will help you reach status quicker, because it won't. When mileage multiplier pops up and gives you an offer at approx 3.2˘/mile, you could simply buy a very similar number of miles at a better price using the "buy miles" option on the website.

Imagine walking into Starbucks and buying a cup of coffee for $2.00. The barista turns to you at checkout and says "hey, since you came in today, we're running a special promotional offer. Here is a card that will allow you to come back in tomorrow and purchase this same drink for only $3.00!" ... that's basically what mileage multiplier is right now.