Take-off
'Low cost' has nothing to do with fares. It's a business model in which the airline (or other business come to that) drives out any unnecessary product cost (e.g. food, credit card commission etc). Cutting out frills enables them to make a big profit and also to use part of that to cut fares and increase sales. Common sense says that you wouldn't cut fares where there is high demand, and airlines never do.