Over the past couple of years, there have been numerous posts on Insiders with the complaint that the Cat 5 certs are not easy to use. Cat 5 certificates are often received either as an annual benefit for using the Marriott Chase Visa, or as part of a Mega bonus promotion.
Here's a suggestion: Why not allow people to upgrade from a cat 5 for 5,000 points for each level of upgrade. A cat 5 hotel costs 25,000 points per night. A 6 is 30,000, a seven is 35,000, etc. up to 45,000 for a cat 9. A lot of people would be much happier with these cat 5 certs if they could upgrade them in this way. I rarely have a problem finding cat 5 hotels, but it does happen, occasionally. Any thoughts on this, friends?