BTW: did you already compare the performance of Raspberry Pi to Beaglebone Black? For example how long it takes to create a music database from a directory. Or how responsive the runeUI is. Just interested because the BBB CPU should be twice as fast as the RPi CPU.
BeagleBone Black is quite faster than Raspberry Pi in almost every task, and does not have critical limits on the USB bus. If you don't need more than 1 USB port and you are going to use it via Ethernet, then the BBB is a very good performance/price option.