I think that's what makes glyphs the best example. They show very clearly how damaging inflation is to new players. It's one of the few markets that puts brand new players side by side with lvl 85s.
A brand new lvl 25 player should have the same access to their glyphs as a veteran lvl 85 player.

A lvl 25 should have access to glyphs, why? Not having a glyph is not going to prevent anyone from leveling. That is a terrible example.

I agree with "I see what you did there": of all the items that are out there, its glyphs that but a low level and a max level both want.

No, its not a requirement in order to level, but everyone wants to have the ability to pump out as much damage as possible, and its more true in the low level dungeons: people on alts have twitchy kick fingers and are looking for any excuse to kick the lowest dps.
So if someone is going to kick you for low dps, what is the first thing your going to do to up your DPS? Your gonna grab whatever glyphs you can find and see how much that helps. Then you look at your rotation, and then gear.

No, I agree with Fox and "I see what you did there" - its almost impossible for anyone to get their foot in the door if they are new to the game without some kind of benefactor.

@Scuac

We should be able to buy glyphs at level 25 because its a mechanic Blizzard intends for us to use and practice with while we level. What if we had to buy our main skills from the auction house? How does a hunter get his Explosive Shot then? Wait until 85 and we can do dailies for money, how long would the daily take if you cant use your main attack? Think about how bad it sucked when you couldn't one or two of your beginning abilities in Vanilla or BC until you killed 5 or 6 more boars to get the 5 or 6 copper you needed.

Am I the only one that remembers not being able to train all your spells as you leveled because you couldn't afford all of them?