That's a good point, but note that providing reliability adds production cost as well. Services and businesses with guaranteed high reliability cost significant

That's a good point, but note that providing reliability adds production cost as well. Services and businesses with guaranteed high reliability cost significantly more than those with low reliability, and I'd expect that cost to be reflected in their prices. That's why guaranteed overnight delivery generally costs more than waiting a week or two for your package. I work at a company that provides business services, and some customers are fine dealing with irregular availability of resources if it means the service cost an order of magnitude less. It's not common in power yet, but in the future a hospital might pay $1/kWh for high-uptime power whereas someone else might pay $0.01/kWh for excess capacity provided as available to charge their car.