Solar power generation

I believe solar is the way forward for ordinary domestic properties, but until the costs come down there is a limited number of people who can afford it.
Holly from bulb wrote this
" uptake of domestic solar generation is still slow. There could be a number of reasons for this - the location of the property, the aesthetics of the solar panels, the cost, or simply a lack of desire to install them."
If one was to look at the surrounding 1000 properties that are near us, realistically how many of those inhabitants could afford the thousands of pounds solar costs. In my area very few