Compare Us to Expedia Travelocity | Orbitz and some travel agencies.
Flight: They advertise a low price to bait you, then as you book, they add on additional costs depending upon the flight you select. There are two airports in Paris. Which one is best for you?
Hotel: We always find ourselves asking, "Where do I stay?" Is it close to where I want to be? Is it safe? Are the rooms good? How is customer service?
Transportation to/from the airport: As in any major city, there are many vendors vying for your business to help you get from the airport. You take a chance on booking and some charge exorbitant prices.
Excursions: There are tons of things to do in Paris. How do you select and ensure you are not getting robbed for the cost?
You will not be offered any: