[adiian]

Here are a few simplistic observations:

1. Let's consider 2 type of users to which ads could be served. The premium segment willing to pay have a certain profile. By removing the premium segment the entire group will have less value in the eyes of advertisers.

2. Google offers plenty of integrated services. They have only a few profitable when taken separately. Most of them are to support the few generating profit.

3. Would you pay separately for email, drive, search, ...? Probably not, so a flat price for all would make more sense. In this case you might be more valuable as part of a bigger pool of ad consumers. Remember you're a "premium" user willing to pay for certain services that you can have for free. A gold mine for advertisers. I should keep your contact for when I'll have some saas to sell.

4. If sold separately, each service will have at least one competitor specialized on a single product. Eg. Dropbox for Google drive.

5. They will probably have more premium/freemium services. People were missing the incentive to pay for something that could be free. Not anymore.