Why is there so little wallpaper and flooring in the game even in the expansions?

We could probably speculate but I doubt anyone actually knows. I've never seen any discussion of it from the Sims team.

I'm more puzzled why we seem to get so many similar wallpapers like the modern wooden slats x how many times by now
meanwhile yeah lacking selection in pretty much everything else

I've been wondering whether they keep it like that so that people buy kits to get them. In my opinion, some of the best ones came with kits.

"Simmingal;c-18284820" wrote:
I'm more puzzled why we seem to get so many similar wallpapers like the modern wooden slats x how many times by now
meanwhile yeah lacking selection in pretty much everything else

Well spoted. In my opinion the game is lacking in solid wallpapers. I mean literally solid, flat colours, but with almost every expansion we receive similar wooden patterns. I'm surprised that we didn't receive anything in SDX updates. Long time ago in one hour I made 100 CC swatches even if I'm console player.

We should have hundreds by now, it is very sad how few options we really have. Especially for carpets.

I'm not sure, it looks like they never did add a lot of that. Maybe because they felt the base game wallpaper and flooring worked fine for their suburban american worlds so we mostly got new patterns for unique worlds.

I would love more colour choices for solid colour walls, tile patterns for both walls and floors, and some more of the modern looking wallpapers.

"elanorbreton;c-18284904" wrote:
We should have hundreds by now, it is very sad how few options we really have. Especially for carpets.

I'd love more carpets.

I think there is enough choice for me. What I do miss is
- sets of match floor tiles and wall tiles for bathroom and toilets. The floor and walls are one design
- walls with half tiles for kitchen counters and a matching tile free colour for the rest of the room. (jungle adventure has this in one set)

I basically miss more standard wallpapers, delicate patterns and not the bold stuff that we mostly get. I want wallpapers that can be used in multiple houses, floral patterns etc. Typical bedroom or living room, with 5-10 color swatches each version would make wonders :) But I would rather have different prints with each floor trim versions, than one print and x trim alternatives. Eventually one version with no trim at all, in a bedroom that would still work well. Meanwhile I use many cc walls, and I also created some floral designs myself.