[carlosjobim]

No, it's not bait and switch. A book store has an index of books they sell, that doesn't mean they're free. I expect a high quality search engine to deliver paid results if they are the best results.

Should Google Maps remove businesses that charge for their products and services from their search results as well?

[hobs]

I wouldn't expect that at all, search engines search the content they have available to proffer it to you, that's the job.

If by clicking on the thing it does not have the content I searched for (how am I even certain I get it when I pay you?) I would call that result bad.

If you want to charge for stuff that's great, I recommend it, and if you want to give out a free sample or an index that's great, but it should be the same to all comers.