As a point of interest, I learned this week that I can switch from points to miles and back again at will by calling Marriott Rewards.

So, if I am staying for a night at "cheaper" property, I can opt for 500 miles by calling Marriott Rewards in advance. If I find myself staying 3 or 4 nights, I can switch back to points. Either stay counts for Marquis status.

The caveat is that I must call ahead. Hyatt allows one to choose at check-in. This is not the case with Marriott, but close.

John