It's one of those questions that has come up each time over the years. There are two ways I've heard the question phrased: how much is a lobbyist being paid; and how much is the lobbyist actually spending on the lobbying activity. It's probably something that will come up again, and it's worthy of debate.
In talking to others who have it, the one thing that might happen--and I'm not sure of the answer to this--is whether double accounting may actually occur. If you have a corporation or an organization that might actually be filed as a lobbyist and they have actually hired a consultant, depending on how they're reporting it, there are a few factors that will need to be considered when that issue comes up.