It is better to get a good quality appliance which will last longer, than a cheap one which will need replacing within few years.
I've found Hotpoint, Miele and Bosch last longer than brands like Beko and Tricity/Bendix.
For best of both worlds (quality and saving money) try the Comet or Currys auction sites, where you can get new goods at knock down prices albeit with slight dents, etc. Nothing serious and they come with the normal guarantee.
'Pause you who read this, and think for a moment of the long chain of iron or gold, of thorns or flowers, that would never have bound you, but for the formation fo the first link on one memorable day'. Charles Dickens, Great Expectations