My 23 yo wall oven needs to be replaced. Luckily it's still working, but the door doesn't quite stay closed at the top and therefore the self-cleaning function can't work because the latch doesn't engage...also, it won't get quite hot enought to trigger the latch as heat escapes out the top.
Anyway, I only buy appliances from a store that does it's own repairs. I ordered another wall oven and the wait will be 6 months. Nothing top of the line, but it is a Bosch, which will replace the same brand I have loved for all these years.
I had to replace my washer a few months ago...knew I wanted another LG front loader. The selection came down to "what's in stock" because I didn't have the luxury to wait as my washer had died.
If it's in your plans to replace an appliance, you might want to go ahead and get something ordered.