Originally Posted by The_Bouncer

This. At least you know you will actually get the drink - and as mentioned, at least half the time they credit the points too.

By the way, 500 points are worth between $2.00 and $2.50 US, so unless you are teetotal, are usually the lowest value option.

Exception: USA, where the "refreshment" is a 20c bottle of water and a 30c bag of trail mix. Anywhere else in the world, go for the booze.