I've seen people in a guild make more plat in 5 minutes from a raid than most of the p99 players make in a year+
talking 100k-200k+ from 1 item. *rolls eyes*
Just sayin.
There are also certain mobs like
guardian wurms in skyfire mountains that are literally slot machines for getting rich. You can win big if you're luck with the rng.
Find a good tank, cleric and enchanter. Then add any other dps and you can clean up.