I don't get why anybody would be after aurore gear...
Because some peeps are stuck in the "stay geared while I level" mode. While others just PL to 99 and gear up via ambuscade or in some cases, sparks.
Some people
don't have the option to be PLed. Either they don't know anyone to do it for them, lack the gil to pay for a merc, like leveling 'old school', or simply don't realize PLing in a option.
some people don't have Trusts? yikes
For 'PL', I'm really implying being leveled by someone else in an Eschan zone. Yes trusts make soloing faster than otherwise, but leveling speed is still slower vs getting AoE Shadow Dragon kills. A returning player might not realize such a feature is an option. For a lot of people, the last 'PL' thingy they did was Zeruhn Mines Bats/Worms (GoV); Or Aby Worm party.