The first two boards I bought, I paid $184 for 1 to have the USBi and $145 for no USBi. For the second two, bought at a later date, I was able to find for $154 the board, PSU, and USBi thrown in. So getting extra USBi, while also not paying much more than the one I previously bought without it, it was a deal.
So that is how I got 3. Meanwhile, I am putting 1 of those boards per speaker for the 3-way towers.
