It still has the advantages of offering reliable power, a degree of energy security, and no carbon dioxide emissions beyond those incurred in building and supplying the plants.
Because these are retainer-style income streams, they are more reliable and if one fades away, others will take its place, so you have a degree of security.
Consumer tech was one of the most reliable category of products for retailers in the recession, not suffering a slump in sales to any significant degree.