Just had a look myself. The base price of £68.25 out is available for the maximum bookable of 30 seats, and the return goes up to £88 something. This is yield management in practice. Some of the half-term flights (eg Murcia) are booked solid. We in East Kent think it well worth extra money to avoid the LGW hassle and extra surface travel costs.
AGP and MJV are getting extra flights, and these are still very cheap.