They also had a far higher price. This changed the effective disposability. E.g. you likely wouldn't pay $500 to fix a $400 washing machine. If it were a $10,000 washing machine, it's more reasonable.
This is why TV repair shops disappeared. TVs got cheap enough that the labour cost would outweigh the replacement cost. I recently fixed a TV with a dodgy backlight. The parts cost £12, but it took me a few hours. If my time was factored in, in a business manner (including accounting for downtime, profit ,and expenses) it would have been over 75% of the replacement cost.