I see so many people selling 100 plat, 200 plat, etc...

I mean, I've been playing for about a week (real time, not game time) and I have like 10 or so at level 23....

Is it just really really easy to get a lot at higher levels?

Easier @ Higher levels
Some mobs drop 80g - 1p

Pretty much everything you get at lower levels doesn't sell for much and/or nobody buys lower level items.

yea i dont understand why the fg ratio for plat costs so much, its easier to make platinum on rift than making gold on wow it seems just from vendoring stuff at level 24 i got 34 plat.