IDK if this was already said but I'm sure nothing can beat the feeling of getting realm first 85 or realm first class 85 because your achievement is blasted onto everyone elses screen on your entire server including both factions while they are still probably 81 or 82 at best. IDK I would get a huge rush out of that. You can always see all the content while leveling on your alts. I have three 80s myself.