Material costs painting single-family house new construction

I just saw that in your construction thread there was a bucket of StoColor Sil Premium in a photo. A liter of that, even when tinted, doesn't cost 10€ and should still cover at least 5m² even with higher consumption (we used it ourselves here). But if the paint for the second coats only ends up costing 600€, what's up with the primer costing 1,400€? Something special for concrete? Sorry for all the questions, but now I'm really curious.

so I paid 16k for almost 600sqm of surface to be processed with full-surface filling, painter's fleece and painting. The offer seems really expensive to me

I have extrapolated from a 30m2 room.
In this room, the ceiling was not painted. Also, the room only has walls on 2.9 sides.
I did not take the concrete cleaner into account.
- Sto Prime Color: 15 liters approx. €80
- Sto Color Sil premium: 15 liters ready tinted €110 (do not mix tones yourself and, for example, in the guest room, the shade comes with additional costs).

The consumption was almost 30 liters of Prime and 20 liters of Sil Premium. So that corresponds to €160 + €147. Now let's calculate the ceiling (which I did not paint in this room) and forget that the consumption there is somewhat higher. Just extrapolating this room to 150m2: (€160 + €147) * 5 = €1,535.
In addition, there are now 150m2 ceiling and quite a bit of wall. Then you are at around €2,000.

You saved on the plastering for that, which alone cost us 20,000. The painter then cost another 4,000 including materials. I think a lot of labor time is involved, and that's why it's so expensive. Materials are just a fraction, even though good paint is really expensive.

20k for interior plaster?!?!

I have the 10L bucket from toom for 19.99. Covers the first time.

In the basement, the 10 liters from b1 for 7.99€. Ditto. But it rubs off a bit when you scrape along the wall, and it contains latex, it is not good for overpainting.

I only sprayed everything once.

Each has a teaspoon of terracotta tinting color inside to paint over Altweiss.