I'm just doing rough numbers here and I claim to know basically nothing about mining outside of a simple calculator off google. Hardware wise (more my knowledge

I'm just doing rough numbers here and I claim to know basically nothing about mining outside of a simple calculator off google. Hardware wise (more my knowledge base), I imagine the older hardware might have interesting economic characteristics - like if you could stock a fleet of company vehicles with really super great 20 year old Toyotas versus newer Toyotas. Problem is, finding that many 20 year old Toyotas of that reasonable quality, etc. Edit - "quality" not "quantity"!