Hi Markus! Welcome to BP.net!

I'm one of those that keeps my BP in a tub with paper because it's just easier for me and she seems perfectly content in there. However, I completely understand what you're saying and look forward to the time when it's practical for me to have a few beautiful "naturalistic" displays for some snakes that are more display-friendly.

The way I see it...if you're able to provide the right temps and humidity and the snake seems to feel secure in its home (eats readily and not too stressed about being handled)...then the look (and even the size) of the enclosure is entirely up to the Keeper and should make you feel comfortable as well.