I got a B3. It was kind of a sweet spot because BTC was at a high point, and I got it with enough time on this side of the halving to be significant. I actually have a chance to ROI it in BTC terms.

But the other batches have not made sense. In fact I just ran the numbers on B5 and it's worse than B3.

These are going to have to come down in BTC price terms before I'll get any more of them. I expect that will happen soon after the halving.

Or maybe monkeys will fly out of my butt and someone will start to compete with Bitmain. That would help drive prices down.

Whatever happened to BW's miner, for example? They been mining with them and were supposed to offer them to the public last month.