I've been using the MOTU 828 (mkII) that I bought used years ago as a smaart interface. It recently suffered its second firewire port failure, and given that I no longer need its I/O count (Using Smaart 7DI; other multi-channel I/O needs covered by an X32Rack), I'm hesitant to take on another board-level repair job on the MOTU.
I have been lusting after a Sound Devices USBpre2 for some time. However, I'm not sure if I can justify the cost when there are numerous other 2x2 balanced i/o devices at a fraction of the price, e.g. the presonus audiobox usb, or the berry-box that Ivan mentioned.
David - what about the USBpre2 made you choose it over more economical options? Is the USBpre2 that much better?