You can't win with some though, Dom Littlewood and that prat on watchdog have painted us all as cowboys and salesmen.
Got a regular client who own's 3 food outlets in town, was working in one and spotted they still had GU10 50W halogens. They like to be quite independent and do lamp changes themselves, but costs per GU10 lamp for them was around ÂŁ2.50. Replaced regularly with being on 50+ hours a week.
Anyways, 1 Halogen lamp per year without replacement cost them close to ÂŁ25 to run. LED equivalent was under ÂŁ2 a year to run, with lamps guaranteed for 2 years. They told me they couldn't justify the cost of the lamps (think I quoted them something epic like a tenner a lamp supplied only). And they moan about costs and replace he halogens regularly.
Hairdressers across the road from one of the shops had me in, loved the LED idea and the energy saving. Sadly they thought the stuff I was supplying was too dear as Ebay had them cheaper, but did get the pleasure of telling them to jog on when the ebay led's they got themselves with no guarantee gloriously failed and died within months.