Hi Ben,
I feel that it is necessary seeing how much stuff you do with the Raspberry PI to see you try to build a supercomputer by networking them all together. The idea mainly is that you would take a Mid-Tower PC case(Or smaller) and use the I/O ports on the back as your ports for data, then basically build your supercomputer inside the system but allow it to be moved without damage to the internals. It would also be nice to see 1 connector for each thing on the back (1x Ethernet port to handle all the Ethernet of the PI's) It would also be nice if you could incorporate the front panel I/O (Power, Reset, Headphones, USB, Etc.)