Making money on line has been a major source of income for many people especially during economy
melt down, but out of thousand of people working online, only few people are really making money while some are making penny. Having website with thousands of pages is not a criteria to make million online. Before you can turn your website into mult million dollar business, you need to have an ideal or passion that will resonate with people. You don’t need to rush to what people are demanding for, but move to what you have passion and planning for.
If you want to make a million dollars, you need to search for your area of interest and not searching what demand seems to indicate. To make sometime out of website depend on the content and what can motivate you to produce good content in order to satisfy your readers. What fuel your passion? So if you are searching for market that people are demanding and you don’t have full understanding of such market,definitely you won’t be able to satisfy your readers with good and valuable contents, therefore your website will lack traffics i.e you will be losing money. You can’t make money if people cannot find what they are looking for ,defiantly they will not come back again. So you must understand what market is all about before jump into it,

You are right: it's not about the number of pages. Having a good number of pages may be a plus, though. And multi million dollars? That happens only with a clear cut business strategy and in-depth knowledge.