Yes, that is part of the reason. Also sometimes 2 X 85k. Sometimes even one night at a time. Also, the 85k (even if I do not always maximize it) usually gets me $400+ in value, plus the annoying $25 per month restaurant credit and I am already ahead. Add in the sometimes useful NUAs (with help from the additional elite night credits) and it is somewhat of a no-brainer, at least in my situation. It pushed me over 75 nights this year. Interestingly, I will rarely use a FNA at a Ritz-Carlton as I really like the lounges and cannot use the FNA with the Club Level Upgrades, although I may do so shortly as staying at a RC without a club lounge and can save the points for one night. Sometimes you can pay a supplement with an FNA and get the lounge and have done that too.