Back in the day there was no BG XP, so it wasn't an option. U also need to have in mind that most already had their teams at 80 when WotlK hit, so we were fresh to start leveling again.
I bet ur tired from a long way leveling, even if u had RAF, leveling is always a bit boring.

Watch some vids of people multiboxing, try to get some sort of inspiration, put some music on and continue the grind.
Also, don't be a maniac about it and take it easy, playing relaxed is the key