Quest and 3x40 eq in some cases simply can not be replaced. I have heard runes can now be destroyed from 3x40 eq, but I think it's important to be able to remove them from all equipment.
Why?
Because you haven't even created the avatar shops, no one knows what they can buy... can we buy stats? max stats? damage? This complete lack of information may have lead to some people to attach stat runes to valuable eq which may prove to have been a silly idea. You simply haven't given us the information to make informed choices... and that falls back on us?

Because of the concept of the rune system, and rareness of gems... gems are only really socketed to the best eq... and the best eq is often the hardest to get.
There is no gain to a player by allowing the destruction of a attached rune, allowing eq to return to it's original state.
The destruction of the rune on eq could be done by a jeweller for a modest price.
People are carrying runes unsure about attaching them because they don't know what the heck is going on. I'm doing the same thing at the moment. So you have this good thing, but we are scared to use it, it's counter productive.
Eq gets added in the game, we reroll our stats, things change, we need to be able to destroy runes to keep up.
It's seems common sense to me... so can you just do it?