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Should I keep the citi prestige for the 4th night rebate but limited with the 250$ rebate on only air fare travel or switch to the chase sapphire reserve while there is still 100k sign up bonus and get $300 rebate on most travels & hotels?
Unsurprisingly, the answer has to be "it depends" based on data only you know. If you do enough stays that qualify for 4th night free in a year, the value you get from that would quickly outweigh the increased benefits from CSR. If you don't do that many, then CSR would win.
That said, if you can meet the spend and are not over 5/24, it makes sense to get the CSR anyway for the bonus, and then decide.
I ended up signing up for it because even for the sign up bonus it's very worth it, was approved for 17k limit and I calculated my prestige, I opened it on April 30th and before my annual fee hits I can double dip on the airline credit gaining $500 airline credit plus $600 worth of points plus $424 rebate for hotel and minusing annual fee, Im already up $1124.. so it's worth keeping along with opening new CSR I think I can make both cards work together..!