Nice Thread - yes I did just read all from the beginning - so thought I'd register, say hi, and tks.

One thing I was wondering, there are some posts concerned with efficiency (hash per watt),
is this because they are more interested in increasing immediate fiat returns?

For me personally I take the cards as far as possible with an eye on max mBTC return, even at lower "fiat returns"
Reason I do this is increasing BTC holdings is priority for me, Anyone else have thoughts on this?

Regards.