Not exactly true, I found a used Compact 8 place setting Toshiba Dishwasher for below RM800 from an expat who was leaving Malaysia; Brand new is about RM 950 - RM 1100
Eco-Mode takes 3.5hours to wash, rinse and dry
There is another programme that get stuff washed, rinse & dry in 1.5 hours too
Quick Mode takes about 35 mins to wash, and I can clean a greasy Air Fryer in no time. (one appliance everyone loves to use but no one wants to wash up)
Since this is a compact model, so can get filled quite fast & the power consumption is also low. I monitor my usage daily and I think on average it takes about 0.5 to 1 kwh unit.
You are right about not placing wood items, seasoned cast iron pans etc. However, other general items can be thrown into the dishwasher. A smaller compact unit is more worth it for a family of 4 - 6 persons.
Since only need 35 mins, I can run it twice if needed. Dried stuck on items require a longer wash cycle (ie Stainless Steel Rice Cooker Innerpot with overnight stuck on rice starch)
Oh I didn't know the quick wash setting also can cleaning greasy stuff like airfryer. I guess we all stuck with the mentality of more (time) = cleaner. Just like washing machine which most of the time we run full cotton setting.