My aunt has one of those aerial photos of her house.
Someone knocked on her door, showed her the photo and tried to sell it to her for £50. She told them where to go. They suggested that they might be able to reduce the price slightly. Eventually they agreed on £5! I guess once they've hired the aircraft and developed the photos, their expenses are already fixed. Now they just need to get back as much cash as they can. I'm not sure that £5 would cover the cost of getting the photo, but it's certainly better than nothing....
FFF
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