Originally Posted by
dcline414
The most obvious reason to me would be that you have the better option of a $200 credit, either in the form of a Tiffany's gift card or a Delta travel voucher. I cannot think of a single time that I would have been better off with 20k miles over a $200 voucher when booking leisure travel. YMMV.
It's a tough call for me since I've been redeeming a bunch of JFK-LAS awards for 25k. The flights are about $370 in U so I can get 4.5k MQM and 9k RDM for $170 with the voucher or pay just 5k miles over the 20k.