I'd say it depends on how much you value the extra space and enhanced service and how many miles you have.
I've had to book in Club one way on that route for the Paris DO as no economy availability on flight I want but seriously considering cancelling, purchasing a Hand Baggage Only fare for £122 and using 4,500 Avios to knock £30 off that price. Even a cash booking for c.£220 in Club seems better value than the 9,000 Avios.