I was 1K for seven years, now 1P which I just barely made -- and only because of the extension offer. I'm at about 900K on my way to MM with UA. My problem is that all of my tickets are either D, C or F fares. This means that, with the 100% 1P/1K status bonus, I get nearly as many miles if I credit C flights to M+ as I would to M&M. With F flights (which are nearly all my flights on UA metal) I get 375% of actual miles flown when I credit to M&M versus 250% when I credit to M+. And that's before I consider that M&M has a 1000 mile flight minimum versus 500 for M+. So, when I fly SFO-LAX on UA in F on a CRWSTAR fare, I can have 1250 M+ miles only 500 of which are status miles versus 3750 M&M miles all of which are status miles.

When I bought V fare tickets, M+ was great for me and I was loyal to UA. Later, when I was buying B fare tickets, M+ was still good to me and I was loyal to UA. Now that I buy D, C, and F fare tickets, UA screws me. It's unlikely that MM status will turn out to be enough of an incentive for me to choose UA metal when flying internationally. The only M+ miles I'm likely to collect are on three class domestic when I have a D or C ticket and those only as long as I'm 1P. Once I fall to 2P then all the miles will go to M&M.

If I was within 20-40K miles of MM, it would be enough of an incentive.