How do you react to being undercut?

[Andriel]

Play EVE Online, people will undercut you by .01 isk (EVE's currency) when something costs 7 billion isk to buy. Imagine sitting somewhere for 8 hours constantly adjusting your price by .01 in order for it to sell in a reasonable amount of time. You think we have it bad that people undercut by 1 gil every so often? Imagine it happening every 5 min, by 10 different people.

There just isn't anything else to do, when gate camping in CVA space (so many tears!).. I'll just log on my Jita trader alt and make billions of profit... All while harvesting CVA tears!