Bonvoy's 9,000-point nudge is a maybe; its 35,000-point free-night cert is the signal.

Bask Bank's latest promo offers 20,000 AAdvantage miles for new Mileage Savings customers who park $50,000 for 90 out of 120 days, with a September 1 to November 30, 2026 enrollment window. The deal hinges on your willingness to hold that cash in a non-interest-bearing account; the bonus miles are valued at 0.42 cents each by Bask for 1099 purposes, but your actual yield depends on what you'd earn elsewhere. If you'd normally keep $50k in a high-yield savings account paying 4-5% APY, the foregone interest is roughly $500-625 over 90 days, making those 20k miles worth about 2.5-3.1 cents each if you value them at 0.42cpp — a net loss. But if you value AA miles at 1.5-2cpp, the math flips in your favor, especially since the ongoing 1.75 miles per dollar per year rate adds more value for longer holders.

Under-30s get 5% cashback on their two highest local spend categories each calendar month, auto-selected by DBS, once they hit S$500 in eligible spend - with bonus capped at S$30 per category. Miles mode is a 1.3 mpd fallback with no cap or minimum, and DBS Points never expire. The no-foreign-transaction-fee angle is real, but foreign spend earns 0 cashback and 0 miles, so it is not an overseas card. The S$196.20 annual fee is waived for the first 5 years, and after 30 the card drops to 1.7% flat cashback with no bonus categories.