That's what I did...booked a cheap HI for 2 nyts at $130 (Manila) and Australia ( $210 not so cheap eh but the HI looked cheap anyway)...
Now Im gonna used that 1 free stay in IC Singapore ( about $200 plus a BOGO so its like paying $200 for 3 nights) and IC HK later (about $250)...
Im too tied up at work now wish i could have booked more qualifying stays (though I used several 5K PB's along the way)...