Destructoid - Rev Rant- Donate!
It's basically about how we will pay large sums of money for the chance to play bad games, but will almost never pay very small amounts of money to reward good designers who release their wares for free.

IndustryGamers - Why The Way Multiplayer is Sold Needs to be Rethought.
A strategy that would make more sense in our minds is to offer multiplayer components essentially like large DLC offerings. For the record, we're not thinking of something like Resident Evil 5, where there was a full price for the regular game and then a DLC multiplayer component that stacked on top of that. We think (or hope) the cost of the multiplayer component would be subtracted from the price of the disc product, somewhere in the range of $10 to $30. By doing this, consumers are more likely to buy a game early because the retail price is more reasonable, and they can opt in to the multiplayer at their leisure. This takes some of the appeal out of buying cheaper used games that the industry seems to loathe so much and guarantees steady income as more and more people buy into the multiplayer DLC.