Not very important, but I when I hit level 10, I like to queue for Esseles/BT with a social boost until level 15 and/or cant stand it any longer. I kinda like the Balmorra social set, and this gets you there plus a head start on social.
Again, not important at all, just something I like doing.
Basically, once you hit level 47 you win the game nowadays. Late thirties/early 40s can really drag at times.