I've paced myself fairly well. I'm only just now leveling a second class to 50, and while I started in the mid 20s for this class, I still don't expect to hit fifty until maaaaaybe the end of next week. After that I expect to take a few days to farm Primal and do my Relic Quest, it'll go a lot quicker this time, since I already have a lot of PLD loot that dropped during my first Relic Quest.
After that, I pick another class and start again. Hopefully that one will about take me until 2.1 hits. I actually enjoy leveling other classes a lot, but id like to save the bulk of the classes until 2.1 hits, and I have both the dungeon XP Buff, and Beast men Daily Quests to work with.
If I had those two things alone, I could easily see myself staying occupied and entertained till into next year.
As for people that have almost everything leveled.
. Guys, the sub is twelve dollars a month. You don't need to even play daily to justify that expense.
I realize I have no place to be saying it, but there's a really strong argument to be made for pacing your selves.
Also, yeah, kinda late to be saying that now, I suppose.