Considering WoW caps at 70 it was more than likely the push from 70 to 73 that killed him. Soon to be Dead Gamer: "Why iz I notz lvlin'?" Voice in Soon to be Dead Gamers Head: "Because you don't want it bad enough"
Good luck. Starting with no experience, unless your a super star, is more like 30k. At least over here on the East Coast. 50-70 is mid to senior. At 70-80 your tapped out unless you're a tech artist, Art Director or making title bonus's.