Just came in this morning http://www.rediff.com/money/2006/dec/12air.htm air tickets are the most purchased items online. Though the fact remains how many non-travel agent buyers exist. Their is an important requirement for a study in this regard as real benefit of booking with service provider is not getting filtered down to the real consumers yet.
Secondly with rising tax on air travel government need to understand if they start taxing consumers per ticket travel so much its becoming unfeasable to do air travel.Example so many times we get fare of 500 rs for a destination but taxes of around 1100 rs make it 1700Rs. Around 60% of fare is tax component which is outrageous. Atleast government could come up a policy for reduce tax on new destination airports to encourage air travel example pathankot, hubli other Tier-III cities comming on air travel map. So that travellers could be encouraged to take advantage of air travel as a medium.