Some games are stubborn. Perfect Dark HD went on sale twice this year and that gave me hope for Banjo-Kazooie HD to go on sale, too.
Hasn't happened yet.
I bought Arkham City. The textures are muddy but keeping the resolution at 1024x768 helped things. It looks like you're playing on a standard-def television - no pixelated, not blurry, but not impressive, either. There was no lag in the controls, game loads up in ten seconds.
Client is...
You'll likely play it once and never touch it again. It's a short and linear game that packs in a dozen thrills per minute but ... it's still short and linear. So think of the $4 price tag as a rental that never ends.
What about people abandoning their accounts. Maybe a good number of people lose interest and abandon their accounts so the points float away to limbo. That's how mail-in rebates work.