So much fail in this thread. "It's all ones and zeros". That's like saying "it's all just grooves in the vinyl" and that all cartridges sound the same. In both cases there are a lot of important parts and design choices between the input signal and the analog output that (can) have a significant impact on sound quality.
If you're happy with the sound of your $200 DAC and truly believe more expensive ones will all sound the same... I guess you should consider yourself lucky!