Investing in Memories
One of the alternate definitons of investing is "to cover or adorn." That's what we do here: take what you bring and adorn it on "film" for you to keep for years.
So, yes, of course, money changes hands. That's a given. But to us it's way more than clicking and handing over images. We put a lot of time and heart into this, as any good photographer does.
So try to look at this all as investing in something that will last for years and bring back memories of some good times.