Note: Just to clarify -  Citywing have stated that there is NO Airport Development Fee to pay if using their flights.

In my own personal experience with Small Carrier services, there is NO free baggage apart from "Carry On". 

Fares on the Ben or Mannanan also vary dependent upon the time of year you are traveling

(ie MGP and TT periods in particular, when the price increases dramatically).

And no I don't work for Citywing.

I am just a supporter of another service that will provide to people, another means for traveling to and from the Isle of Man.