Having alts that have the freebie WQ every day is pretty great (I know of death knights and warlocks), as I can use that on WQs that reward anything from high gold value bacon to cosmetic fodder like BoA marks of honor and pet tokens. So far I'm only bothering to upgrade one horde and one alliance character to max as it's really not that lucrative, it's just a nice bonus. You get far more profit actually going out and doing profitable world quests with + to gold combat allies active. Like if you find a world quest that awards 700g, then you can do that on every one of your alts. The 500+1700g missions feel like pocket change by comparison.