[quote name='k9homan']
Its more of, a share of the pie when a sale is made. The shared marketing cost, MDF, (marketing development fund) is only a very small percentage...[/QUOTE]
MS reducing their cut would be a sensible compromise for short term exclusivity...but that said, flipping through my xbox dashboard tonight, there were 3 tiles promoting the next map pack (2 in Spotlight, 1 in Inside Xbox...one was a trailer, and there was an inside xbox video tile about how 'amazing" this next map pack was in two different areas)....That sort of saturation doesn't happen by accident.... Given the sales of these things and their appeal to a key xbox live gold constituency, MS would have likely done some extra marketing regardless but now I suspect they do it overkill mode as a part of this exclusivity agreement.