If your main motivation of joining Hubpages is for Ad Revenue, I would be more concern about the exact Ad revenue than the views. You can check your earnings through your account page. You can also check the sources of your traffic through the stats pages of the individual hubs. For example, when you click on your own hub it is counted as a view. Obviously, viewing your own page a 1000 times isn't going to have any impact on Ad revenue and isn't going to be be an accurate traffic gauge. But the more unquie views your hubs get the more potential ad revenue.
Also the more people that view your hub, the more people that are potentially reading your hub. If you are someone you is writing more for the love of writing than potential revenue, the fact that a lot of people are reading your hub could be a personal validation.