I think this is the next step M$ needs to take to make Gold Membership more inviting, and add more capability to silver membership to entice them into going gold.
"Microsoft is bringing discounts to Xbox LIVE. Starting today, Xbox LIVE Gold members get discounts that range from 25 percent to 50 percent on Arcade titles, DLC, Xbox Originals and other LIVE content.
This week's deal is Braid, now available at a 33 percent discount for 800 Microsoft Points. This deal will only last one week.
Later this month will see Gold member deals for Ninja Gaiden II DLC, Project Gotham Racing 4 DLC and Xbox classic Fable.
Microsoft trailed this last December with the Halo 3 Legendary Map Pack.'
http://kotaku.com/5158499/xbox-live-gold-members-getting-weekly-deals