Given that, as you say, most lamps are now at least moderately wide-angle, I rather suspect that many people install far more downlighers than is really necessary.Originally with halogen, there was about 10 beam angles, then only 3, then suddenly narrow beam lamps virtually dissapeared, wide beam became the norm and suddenly they were called downlights, one big manufacturer brags in there ads how you can save time and money by fitting less lights than there competitors for the same amount of light, due to the wide beam they claim to give out
Kind Regards, John