Why buy such a thing in the first place? It's 300e and for that money you can buy a full sized one. I'm seeing similar priced mini dishwashers on amazon.

As a sensible cosnumer you should have considered buying something standard and invest you time in something else.

If they would sell the dishwashers and 1/2 price and rely on recurrent income from detergent that's a different story but in this case I see no really reason why would someone even consider it. Let these companies bite the dust.