why bother?

I'm not sure where to start with this email 'advert'. 

1 I'm of an age that my own father is long gone.

2 I'm not a father. Furthermore, it might be upsetting for a father who has lost a child - or a man who wanted, but couldn't have, a child.

3 The prices are in dollars. It is a US company, but I bought a product in pounds from the company's UK outlet.

4 The products being sold are firmly in the 'one-off' category of purchase. How many motorhomes does the average person have? Even if the answer is not 'none' - few [any?] has more than one, so why buy two reversing cameras?