Blizzard's move to raise the lvl cap to lvl 70 and making blues item in BC better than raid epics is more of a strategy move. It pleased the casuals in the sense that they can finally see all the 40man raid instance. Also not to forget the hardcore guilds where they can finally forget about getting the epic items that have never drops for them. Casuals want a chance to raid and hardcore guilds gets better gear. Prior to that of a lot of hardcore guilds are already complaining about having too many things to do but too little time to do it. Now everyone is happy.

Blizzard is laughing all the way to the bank right now. They have the amount of servers never imagined in any MMO history and yet a quick check at US Realm Status website still lists many servers as Max (queued).

Yes but quest with compelling storyline demands a lot of traveling and it will be slower to level that way. Its hard to have significant questlines at low levels. Hopefully they can at least give more insight about the race, their histories in quests at the higher levels.