Another variable not talked about is the availability to the top-tier members of the programs inventory that is not available to lower tier memebers. I have found this to be the case at both Delta and American. At Delta, I could have relative ease redeeming awards when I was platinum. But as silver, it's much harder. The same when I moved my business to American. I have noticed it progressively easier as I moved up the elite level ladder. As a EXP, I could have had 2-round trip tickets this weekend LAX-LHR. I almost did it, except then I realized I had a dinner to be at last night.