UPDATE:
We have released a new bitstream on the BCU-1525 for the coin 'Nimiq', an argon2d based pow. The current hashrate is around 675Kh/s air cooled at 130W. This comes out to around $2.50/day per bcu. The developer is currently working on improving this bitstream and I believe we can obtain around 4x the current hashrate (around 2.5Mh/s).
Hope you're right - $2.50/day is not where a BCU should be. It's what a 4x cheaper 2080Ti (can't believe I just wrote 2080Ti and "cheap" in the same sentence) is capable of producing nowadays. We do need a few good bitstreams.