I don't recall any such thing. It's not like this is a huge cost, especially considering that most games don't even let you change combat class after character creation.

Please don't take this in a bad way or anything, but I think you might not understand what it's like for new players really or people below T20. 100 million is a huge cost early in the game for most players. Keep in mind that the economy is basically dead except for items being sold and bought at the higher techs, trade chat as well, and most loot that people below T20 are able to find in DGs and so on (most, not all) they'll have extreme problems trying to find buyers for unless they set their own shop up.

I vaguely remember making the topic Churchill is talking about in the suggestion forums years ago, it got some decent feedback and a developer said they would look into it.

I'd also like to add that most games actually give a decent description of the classes and abilities themselves, by being able to preview their skill trees and upgrades and things they can do. Currently with the focus system, you get some vague text for each focus and that's it. Someone might think "Oh, being a Berserker or Seer sounds cool!" only to find out that they're more or less at an instant disadvantage and underpowered with most of the gear accessable to them.