I hope you find Andrew’s quote helpful in your decision. If you can overcome your cost issues go for the Ros. The Bartók FPGA is capable of getting 2.0 upgrade, but dCS want withhold such development to maintain the gap in performance ie You’re more likely to see Ros significant firmware upgrade before the Bartók. So I figure a 1.5 upgrade in 2 years and possibly a 2.0 in 4-6 years.
If you value the headphone out option, the Bartók is such a great unique proposition, and you’ll need to spend a lot more to get an improvement.