Its not an abstract point. My costs may go up, without my income going up, if I need more repos, which I can't necessarily predict in advance. I then either hav

Its not an abstract point. My costs may go up, without my income going up, if I need more repos, which I can't necessarily predict in advance. I then either have to eat the extra cost or go cap in hand to the client because part way through the project or starting the next stage we've restructured the way we're using repos. Maybe we should plan better in advance, but with the other service he is using he doesn't have to.