I think if you look at the picture of which you speak, it is from the actual company that he purchased it from. I believe he was just giving us an idea of what the tank will look like stocked.
Also, I think he explained the tang (tiny) was a hitchhiker with some rock he bought.
Money or not, it shouldn't factor into what we are all doing. We all do what we can and I can safely speak for others that we are happy for those who just add 1 piece of rock or stock their whole tank. We are all a work in progress.