What farming covers here
The services with no target rating and no finish line: gold on your realm, dungeon runs for the pre-raid list, and professions to three hundred with the materials gathered. All of it played by hand on your own character or traded to it, and all of it quoted before you pay.
Why by hand, and why that costs more
Classic has no catch-up mechanics, so everything on this page is time somebody spent at a fixed rate. The alternative is a bot, and a botted order is a flagged account with a stack of gold on it. We would rather quote the honest number than the one that wins a price comparison.