I think making 5 games a week in one hour increments would be a pretty interesting experiment. :D I heard on NPR a while back that an experiment was done on something similar. Basically one group tried to write the best quality article they could, and the other group tried to write the most quantity of articles. The end result was that the highest quality articles, when examined by 3rd parties, were all from the high quantity subjects. I think the intention of iteration makes trying new things less of a risk/pain, so we end up with more creative products as a result after a few cycles. That's sort of what I hope to glean from doing these gamejams.