Hmmm. Food for thought Although I'm not sure that I would ordinarily redeem 50k miles, if they were in my account for $1020 worth of travel. 2 cpm is ok from my account, but not great. There are enough miles in my account for F or Buisiness travel abroad, and I will probably use them for such within the next 12 to 18 months.

I suppose what I'm saying is that if there were a way to transfer 50k from her account to my account for free, what I would do for the upcoming travel is buy the tickets with cash and keep the miles in my account. I would value the 50k in my account as worth more than the 2cpm, but not really in her account. By using her miles to book the travel, and getting miles in my account for an additional $85, I've essentially done exactly that. Haven't I?

The point you've raised though is a good one, and I suppose I must consider what I'd do with $1105 more in my pocket for future travel if I simply use my wife's miles for the tickets.