Cross-posting from the MyN thread for those interested:
Man, DKCR is a pricy reward. As are all the Gold Point ones. The cheapest you can get GPs for is $5 (game) for $10, at a rate of 10 points for $5 spent, or 2 points/$1. Otherwise the most expensive way to get them is to spend increasingly more points. $9.99 games get you 10 points. That's 1 point/$1 essentially. If you spend $70 on a game you get 80 points, which is only $1.14 points/dollar; $79.99 also gets you about 1 point/1$.
That is to say, as soon as you're looking at a game more than $5, you're already losing out on the best possible value proposition for GPs. If you spend $12 on a game you get 20 points. That's 1.7 points/dollar.
The best bet is to find all the $5 games you want. But, are there *any* games that cost over $5 but less than, say, 7? Will games that cost $4.99 really net no points?
Even if you get a game for $6 and get 10 points, that's as good of a deal as $12 for 20 points. Everything after that is worse, unless you can find a game for $11.
If I'm messing up the math here, please do correct me.
The cheapest price for DKCR, at 230 points, is (at $5 for 10 points) $115. The most expensive price is $230.
Hmm.
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FWIW, as pointed out elsewhere on here, people have reported sub-$5 games giving 10 coins also. So perhaps that's a glitch or will change.