Further thoughts on the misuse and misunderstanding of the term ROI for bitcoin mining.

I continue to see both noob miners and experienced miners misuse the term ROI or saying they "invested" in a mining rig in order to mine bitcoin. ROI is a technical term with several meanings none of which have to do with buying an asset, keeping that asset and using it to produce something else. ROI only applies to buying and selling of the asset, not what it produces.

Buying a bitcoin mining rig is not an investment unless you are buying and selling mining rigs. Only under those circumstances can the term ROI be used correctly. The ROI is the difference between the price you paid for the miner and the price you sell it for. It does not apply at all to the amount of BTC you mine versus the price you paid for the machine. That is properly called your break even point and that will include any ongoing fees incurred through the use of the machine like electricity during the useful life of the machine.

A mining rig is a tool used to achieve some other purpose which is to mine BTC.