We have a Bosch Dishwasher. Cost $1600 when we bought it nearly 8 years ago. It's been pretty good, we like it, etc, but it's developed a fault a couple of years ago where the display works sometimes and doesn't work others, with no Rhyme or Reason, and this week the pump seems to be not working and doesn't drain the dishwasher properly. It ALSO works sometimes and not others with no describable pattern.

I am unsure what the cost of repair of both items are, but I am wondering if it's likely to approach half the value of a new one and if perhaps we should consider now to replace it. 

I am unsure if there have been significant advancements in dishwasher technology and if that should be a factor in the decision. I hate fixing stuff, I almost always replace, because in my experience once stuff starts to go wrong, it's never the same. 

I have no interest or skills with which to repair it myself.