Yes I did too notice some routes A3 business class fares are out of touch. Basically for a European Business class (or Premier Economy), whichever way you look at it, €200-€250 one way is the expectation. Any amount above that threshold is somewhat above the promotional fare normality.

But if A3 is able to charge double that amount, good for them. OP just needs to find a product that matches his expectations, on terms of service and cost, and value.