I don't have direct prices, but I heard an interview with a spokesperson from the Association of Prefabricated House Builders (or something like that) in which they talked about order declines of 50-60%. That should (indirectly) affect prices.
Certainly, there are still a few percentage points left in the margin, no question. Our contractor currently drives, I believe, an Audi QS7 or was it SQ7? There is definitely room for some downsizing. The craftsman has certainly earned well in recent years, but very few have become rich, especially not his journeymen...
There is simply hardly any room for large price reductions. Nowhere. Sure, if we want to snatch a big order from a competitor, we'll go to the pain threshold. But if we have to bring money at the end, we might as well forget it.
And that the entrepreneurs give up a lot of profit... you shouldn't fool yourself with that illusion.