Travel

What if airlines increased their fares by five hundred percent, and reduced the size and number of their flights by fifty percent, changing their focus to cater to the wealthy and privileged? What would that do to their profitability? What about the effect on rail, bus, and ocean liner travel? And if we must have air travel, what about non-oil-based air travel, such as dirigibles? For that matter, why do we have to physically move at all -- why not have more 'virtual travel'?