Current beef prices here, I would only consider Rump to be suitable for a almost guaranteed tender roast, with any other cut you take a chance
http://www.meat-prices.co.uk/national/England/
£15 to £28 Kg.
Rib eye is better but a price is not listed. It was £28 Kg last time I looked in Morrison's. We have no butcher's shop within 12 miles, the last one closed as no one could afford to shop there.
There is a butcher's van that visits but I lost interest when he quoted £32 Kg for Sirloin.