Originally Posted by
CJKatl
Staying four nights at $49/night hotels can turn into certs that can be used for $300/night hotels.
Maybe not as easy to find those $300/night hotels in a couple of weeks.
But I do agree with your assessment. Marriott won't allow those Megabonus certs to be "upgraded" to higher level categories just by adding the extra points required. They are too easy to get when compared to the number of nights required to get the points instead of those night certs.