That should be a no-brainer.
Instead of spending about 50k miles you’d earn 5k bonus miles plus whatever miles the trip itself earns.
Let’s say you’d earn 6k miles if you buy the revenue ticket.
That’s a 56k miles difference compared to spending 50k for an award ticket.
With an approximate value of
1.6 cpm, that’s equals $900.
Would I pay $321 for a revenue ticket instead of spending $900 worth of miles? Absolutely!