I dont see why consoles haven't went to a ultra sleek inner core with a thermal dissipating shell design yet. Think about it the tech is in one pice then the shell comes with a standard then overpowered upgrades that affect performance directly. With third party for looking cool and pushing the edge. Half of the progression of technology depends on modularity. Upgrades people  upgrades.,(reply>), As for those that have been stifled by the modularity cycle. The simply do not know the maret of merging lines.