Gary, I tried to work out the example I posted (two posts above) using the calculations on your website. I think (know) that I am making this too complicated - am I supposed to use the cost that a business class ticket would cost me or just the coach ticket for the upgrade (I think coach). More importantly, how do the 30K miles I would have to spend to upgrade work into the equation? In any case, I think that it works out that it would be a wash or that it may be worth to purchase the ticket, save the miles and earn miles but PLEASE HELP! Need to make a decision soon. Thanks.