You know it's always a good idea to learn to fix this stuff on your own....Most of what appliance techs charge is labor!
There's not much to a dishwasher or clothes washer for that matter. Most parts on these things are made of plastic so are engineered to fail. I've put three water pumps on my 16 year old kenmore washer...it's literally a 10 minute job!
I used to fix a lot of this stuff on my own back in the day. However, now I just pay $22.00 a month for a full warranty from GE that covers my front load washing machine and dryer, dishwasher, refrigerator, range, and microwave. That is $264.00 a year for full coverage of those appliances.
Last year the motor on the dryer died. The replacement motor was $450.00 alone and the buttheads would not sell me one. The dryer was out of manufacturer's warranty and the dryer motor could only be had by an authorized repair center. The labor for replacement was $100.00 and took the guy 1/2 hour to do the full job. The GE warranty covered the full cost of the repair.
That was $550.00 for the repair - about two years worth of warranty and zero of my time. If you look around, there are places to buy cheap whole house or appliance warranties that are well worth the cost.
Dummys need to think of the big picture and spend their money wisely which excludes Internet porn and weed.