There are a lot of units much more expensive and advanced then the PerfectWave DAC, particularly depending on what you're trying to accomplish.
Not sure why people get so hung-up on chips and keep ignoring that implementation (including programming the DSP in a low-level language) is what you're paying for, not the chip. Even for $5000+ DACs, the DAC chips don't cost much more than a pepperoni pizza. For some of the more advanced DACs, like the Berkeley Alpha, you're paying not only for the BOM but for all the software R&D that went into it.
Edited by Elysian - 11/9/11 at 11:13am