The majority of the people who think the price is right or too low are ones who have no intention of actually using it. They are people who want to make it as difficult as possible for people to buy boosts. That's fine, you are allowed that opinion. The problem is that WOW has to compete with other games. The price charged is exorbitant for what people are getting when compared to other games in the market. You can buy a number of A level games for that price.
On the subject of leveling, call it what you want (cop out by Blizzard, etc), the game is not friendly to new players. They have to spend a whole lot of time before they can actually play with their friends. The content that they are playing through is not relevant in any way, it's not fluid and it's very grindy. You must remember that the game was for each bank of levels to be an experience (1-60, 60-70, etc). At the time when the expansions were released people spent a huge chunk of time getting to the next max level. As it stands now, it's extremely annoying to level to 90. Its not alt friendly at all. It will actually drive new people away from the game. I recently leveled a char on a new account to 90. It took me about 1.5 - 2 months with no heirlooms. It was content I had done before on another account. They have streamlined the zones (less quests). The problem is that it has an horrible effect on flow. I frequently found myself 2-3 levels above the zone as I was doing dungeons as well. I spent more time running to the next quest hub / zone than actually doing any questing. What they needed to do was create "paths" through the leveling process. Leveling to max level shouldn't take more than 2 weeks. It should be streamlined to the point where you can do a zone completely and get level appropriate XP until you are 4 or 5 levels higher than the zone. Killing a mob in 1 zone gives you far less XP than a higher level zone and thats a problem. There should then be a choice of flight points to the next zone where someone can do about 7 levels. People using alts can take different paths for the alts which will keep the experience relatively fresh. Who cares if a new player doesn't see 4/5 of the content. They will see some more with an alt. It will make leveling alts far more interesting as there will be a number of players out in the world because leveling will be fun and worthwhile.
The reason why the boosts exists is because the age of the game has made the leveling process fundimentally flawed. It's not fun, it's grindy and boring. The majority of people supporting the boosts would happily accept a streamlined leveling process instead. Right now, there is no alternative to the hell that is leveling. Until you start a new account and try and level to max level without any of the heirlooms, gold and other guild boosts, you won't realisically understand how bad it really is.