For me, levels 30's and 40's are a pretty dull grind in WoW. Things really start to take off when my characters are hitting level 50-52. I get great new abilities at level 50 - from class trainer and by spending my 40th talent point. I get to start enjoying Alterac Vally at level 51 and my first win there gives me a very nice hand weapon or wand, and at level 52 I can do a class quest that gives me a powerful weapon or trinket that is especially well-suited for my class In the past couple of weeks, I leveled both a balance druid and a discipline priest to level 51+. Each time, upon reaching level 51 I took my character to Alterac Valley. Everyone should do this when a character reaches 51. There is an important Alterac Valley quest chain that one needs to pick up from an NPC stationed next to a certain bank. For Horde, that bank is the Ogrimar bank. For Alliance, that bank is the Ironforge bank. The reason it is these banks in particular is that the cities these 2 banks are found belong to the 2 races that are the primary opponents in the battle for Alterac Valley. As soon as a character reaches level 50, it will be offered a chance to go to the Plaguelands - specifically, to see an NPC at a camp in the Western Plaguelands. If you like creepy places or want the opportunity to eventually learn to tailor/leatherwork/blacksmith a piece of high-stamina armor, then it can be fun and rewarding to get started earning faction with the Argent Dawn in the Plaguelands right away. Getting revered reputation with Argent Dawn is also the only way to get to learn to make anti-venom that is powerful enough to work on level 36-60 poisons. While not crucial for most characters, this is a very nice thing to do if you are a Priest because you are the only healing class that cannot cure poisons with a spell. Also, if you are a Rogue, you really depend upon being able to stealth. So rogues will want to learn to make this Powerful Antivenom from Argent Dawn as well as do the quest for Thorium Brotherhood in Searing Gorge that gives the Louffa reward they can use to remove Bleed effects. Once you reach level 61, these two items become of little or no use to you. So earning them as soon as your character level is high enough is the way to go. While the quests are easy at much higher levels, in addition to getting very little experience doing them, you are going to be disappointed the rewards are no longer of much help to you. Another neat thing about reaching your level 50's on a character is that you can easily pull your own weight in Maraudon and Sunken Temple as soon as you hit 50. Plus, in your low fifties you can get very nice level 50's gear from running Blackrock Depths and Scholomance if you party with some higher level characters. Maraudon is a nice instance because by doing the quests there you will earn a huge amount of faction reputation with the Cenarion Circle. Once you arrive in Silithis, that will enable you to buy high level (around skill level 275-300) patterns from that gang. Sunken Temple (ST) is also a vital instance. One reason is that the level 50-ish class quest for all classes is a chain and at some point in the chain you are sent on an errand to collect 6 colored feathers (2 each of 3 different colors) from some trolls that live there. At level 58, of course, your character is allowed to walk through the Dark Portal in the Blasted Lands, instantly transporting he/she to Hellfire Peninsula in Outland. Once there, incredible gear that is significantly better than almost anything but the epic drops in pre-BC Azeroth is readily available as both drops and quest rewards. The patterns/recipes available in Outland are likewise better than what as gone before. So for all of these reasons, hitting level 50 and then continuing to gain levels from there on will greatly reward a player. Although it used to take a long time to get through the 50's, it goes fast these days due to changes made in various patches that have come out in the past couple years or so. If you have already gotten a character into its forties, I hope this information I have presented motivates you to reach level 50 as qiuckly as you can - and then guides you to quickly taking advantage of the opportunities that opens up for you. With the fast ground mounts becoming available at level 40 instead of 60, reaching level 50 and continuing to level throughout the 50's, is much easier in WoW 3.2 than it has ever been.