No, I'm not talking about DD1. 
Our Zanussi Dishwasher has almost no functioning wheels left, so pulling out the crockery racks is fraught with danger. Buying replacements will cost £45.
But it's 9 years old! Admittedly, it works pretty well (apart from the drying fan that sounds like a dead bird caught in an aeroplane propellor), but is it just throwing good money away?
Would we be better off just putting the £45 towards buying a replacement?
How long do dishwashers generally last??