First time ever posting something here, so ill try to keep my opinions constructive.
I understand how some people can hate WoW. Leveling a new character is a pain, of course it is, and i can understand how many peoples just get lost in the process of it, questing can get a little boring expecially in middle levels ( 40-60 ). But you really are missing a lot by not reaching Level 70.
Leveling 58-70 in outlands is an enjoyable grind. Yes, i just used the word "grind" and ejoyable together. Why did i do so? The quests are fun, the new type of itemzation that came into Burning crusade is insanely good compared to pre level 60 gear (for example, i picked up a 2h axe at lvl 64 that was better then the 2nd best 2h weapon in game), and the instances are well put together in zones, for example, Hellfire peninsula had 2 level 60+ instances, that were easy to do, rewarded higher group xp, both had 2 quests to get blue rewards from it, and actually didnt take too long to do with a proper group.
At 70, the fun really, really starts. While you can choose your path into PVE or PVP. You are not forced to do either, and you can do both at the same time. Arenas have been really popular, and is probably the most fun you will have in wow if you enjoy pvp, since you can actually see how you are ranked in your battlegroup in all 2v2, 3v3, 5v5, and you get your arena points to buy brand new gear by a formular of your current rating.(You start at 1500, and you go up and down some rating per win / lose, being 15 points for a team at your rating, and winning more agaisnt Higher rated teams, losing more to low rated teams, and vice versa.)
And then you have the battlegrounds, where you can meet your opponent faction for either a Zone tagging game, gaining resources per zone , a Capture the flag game, A mix of to the two, or, my personal favorite, a 40 vs 40 PVP zone that is based on destroying the other faction's Building's, and killing their general.
And the grind, at 70? If you are in a pve progressing guild with a sick policy for it, maybe, it can get boring to farm pots for raids, but heck, if you have a casual pve guild, you dont have to play so much. Really.
About the "zone walking" around the place? As soon as you reach 70, that problem is actually gone. The main city has portals to all of your faction's main city, you have flight points to everywhere.
Mylast point before i get bashed and flamed, wich i certanilly will, is that the route from 1-70 is a learning route about the class your playing. While it may seem easy at first, if you wish to suceed in pve/pvp at 70, there is a lot you need to learn about your class, your spec, what setup to use in arena, what do you do in bosses, what addons you should have, and most importantly, you are making your own playstyle, your own keybindings and your own idea of your char, and how to handle it due to gear. And probably the most important of all, you need to have a clue about all the other classes if you wich to make a good group, a good pvp team, or a partner if you are a 2v2only kind of a guy, and specially, if you wish to discuss something beetween classes, so you dont just go (you like wtf did a shadowspell on me and then i coundlt control myself), and also, knowing WHAT your enemy has to attack you, what he has on cds, what can he do with his spec, and knowing how to counter him is something that highly influences your next action. *
P.S: Oh, lacking gold? Just do daily quests. It wont take more then 30-40 minutes of your time, and you will get up to 140g per day, wich is more than you will ever need per day (unless your planning on enchanting/gemming ALL of you gear in one day.)And if you only like to PVP? there is a Battleground PVP daily everyday, 13g reward and 600 extra honor. Also, everyweekend gives 2x more honor from a certain Battleground.
Edit: I forgot to mention, that the gold you get trough leveling, if you pick up a Resource picking up profesion(mining, herbalism etc), and sell what you pick up while leveling, combined with the gold that you get from quests and selling your old gear / gear that you cant use, is Enough to satisfy over 95% of your needs at level 70.
*While having lots to learn about your class and other's, its a easilly accessed game, that gives a feeling of fullfilment when winning a duel, or being able to revenge your earlier loss to a team in arena.