However.... there are ways to move those miles from one program to another. You lose a little in the transition, but still a method to combine program miles for an award.
Some of the rules have changed, but the American Express program and Hilton Honors reward exchanges can be used to move things. Sometimes, only in one direction, but still works.
NWA has a 25% conversion bonus through the end of January for some hotel programs.
http://www.nwa.com/offers/PTM/