Well, it definitely won't get me to change what card I would be charging with.

Personally, I think that the newer Premier card is probably really eating up the base Signature card's market. The only reason I have the base Signature card is to get the bonus points. I charge once, wait a few months and then cancel it. It really has no real value over the Premier card. So I suspect that these benefit changes are an attempt to see if more people can be enticed to get and use the base card instead of the Premier card.