So let me write down my thoughts and I'd love to hear your analysis:
The cards that have had a BM mission (like Merweiss Cr or Golden B this week) massively increased in price during the BM to make it almost 'break-even' for anyone who was going for that mission. What I noticed the last couple of weeks, however, is that after the BM mission the prices of these cards kept rising. So maybe: do not sell when there is a BM but wait a week after is the new go-to-strategy for max. profit?
I don't know when it stops. But obviously, this inflation gonna last for a very long time, as the BM is still living well. And even when they shut down BM, it still takes a long time to recover the economy.
To be honest, I really miss those good days when there is no BM....