Quote from: Pendrak on Today at 07:20:25 PM

Those S19 and future S19++, pro and variants are going to make almost imposible produce money with old miners, even with S17/T17 units.

You need to always be very near the most efficient gears, if you don't invest a certain portion of your profit to re-position yourself in a better place, eventually you will be left out, this is why the duration to ROI is crucial, also the timing is very important, many people I know ( including a few in this forum) bought those latest batches of T17/T17+ for nearly $800 plus shipping, that is what I call a terrible business plan.

If you a T17 58TH for $817, and paid 100-200 for shipping say you paid $1000, unless you have FREE power, you will simply NEVER ROI

Even with 2 cents per Khw, you will still need over 10 months to ROI, and this is the rainbow scenario where difficulty doesn't go any higher, price doesn't go any lower and your gears don't die on you.