Well, I'm off work right now sick, so my income is less and is limited and stretched to the max, so it's not possible. But I do see your very valid point. I didn't consider that aspect of it. But I do agree, it's a nice way of thanking someone for their kindness and efforts. Kind of like sending flowers, but only better :)

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi