That is precisely why i asked you to define what is fair. Because in my eyes, the game is complete once the expansion/patch hits (we can argue over a few details, of course but that's not the point i'm making here). All relevant content is there that needs to be.
An immersion-breaking, out-of-lore costume of Y'shtola has little or nothing to do with the game for instance.
the box price is similar to that of other MMOs in the same category.
The sub-price not only is the same, but even has a cheaper alternative to that of other MMOs.
You get trimestrial rewards for being subscribed, a perk other MMOs may not have or have in a different form.
And that's not even going into the price-per-entertainment-hour argument.
The idea that a mount out of 40 or so somehow devalues your subscription is a little on the farfetched end.
The "threat" is cute but you misunderstand. If they do something bad, they'll suffer for it based on market demands etc. If the product isn't good it stops being bought. Of COURSE it's in their best interest to make it balanced, or specifically, a worthwhile product.
But "balanced' is a very vague nebulous and subjective term we can argue over until the end of time.
Moreso the word itself is a term that focuses on the control of ups and downs. It's not "in balance" if everything is good, or everything is bad.