Yes, I'm not so sure the dishwasher thing is a 'rich people' thing either. One thing I've noticed, and this may be purely from my husband's (and/or his family's) point of view -- with appliances like clothes dryers and dishwashers here, there's more a sense that it's a waste of resources (energy/electricity and water). Do you think people here (generally, though I know one shouldn't generalise) are more aware or concerned (either environmentally or in a cost-conscious mode) about the cost of dishwashers, clothes dryers, etc? Either that, or people just don't have the space in their house/flat for these appliances?
Incidentally, our house has a dishwasher -- but it doesn't work. DH says we are 'going to see if it works' (someday?) -- the lady we bought the house from said it didn't work but of course didn't bother to remove it. The unit doesn't look like any dishwasher I've ever used, I'm not sure if it's even plugged in and/or plumbed...so I've been waiting for DH to get around to 'seeing if it works'. LOL However, if we got rid of the thing, then we'd have room to put the washing machine in its spot, which would free up room for having a clothes dryer where the washing machine is now!