While booking my ticket from Bangalore to Kolkata on Indigo's website, I was pleasantly surprised to see an option to choose my seat number. I was used to getting a seat allotted at the time of checking in, so this was new to me. Out of curiosity and a wish to pick a seat of my choice, I clicked on it and opted for a convenient seat. A bigger surprise awaited me at the next page as I was asked to pay an additional hundred rupee for my seat reservation.
That's when I realized that a Ryan Air like payment system has already arrived in India, where you pay an additional price for everything you add. In the subsequent pages, I also found options to pre-order my meal or buy extra luggage space at an additional cost.
I think it is not a bad idea to ask additional payments for every additional service, as long as a necessity (such as access to toilets, for which Ryan Air was thinking of fixing an entry fee) is not termed as additional service.
Have you seen any such additional payment options when you booked tickets with other airlines? Let us know.