Computer technology changes all the time. Biggest mining issue usual is energy. Mining need much energy that cost more than give. Todays technology with new hard disk SSD make that PC needs less energy and is faster. This make it possible to use energy sources like solar or wind power to run a garage mining set. Now the biggest energy consumer is graphic cards, GPUs. A +500w home solar panel set on alibaba for couple of hundred USD. A mining rig from 500-1000 USD depend of equipment and cards. There is used on the markets. Many both and seen to expencive to use. For 1500 USD is possible to set up solar panel energy, mining rig. On this comes if wanted liquid cooling system, internet connections.
I am looking for partner to setup a bigger mining set here in snow free moutain area.
The crypto currency price is still good, at the moment there can be fast ROI.