I have a long-term stay at a Marriott property (>30 nights) that I was planning on putting on my BOLD card (which I specifically got a few months ago for charging my hotel bills on)
given the length of this stay and the total bill (probably >$15k).... I think it might be worth upgrading the card to Boundless to go from 3x to 6x

so, for $10k spend = 30k vs 60k points vs the cost of going from no annual fee to 95$ year?

is this easily done?
is this a good idea?