Topic: Question on Google Maps terms and conditions

I have a web site for a realty outfit.  I would like to use the google
api to obtain the coords for the house listings when entered.  After
reading the terms and conditions I came to the conclusion that it was
not allowed since the client was paying for the application.

"The API may be used only for services that are generally accessible
to consumers without charge. Accordingly, You may not use the API for
any service that requires a subscription or other restricted access,
or for which a fee is charged."

The reason for the confusion is that I see similar sites out there
that do use Google maps, which makes me wonder to whether I am
misunderstanding the terms or other sites are violating them.

If anyone here is familiar with their rules I would appreciate it if you
could clear things up for me.