This is true, I'm from the smooth part as well. Rarely, very rarely, do I ever encounter textured walls. The only thing I see mostly is popcorn (gag) ceilings, and even those are losing popularity. That's probably due to the realization of the difficulty in touching up or repainting, not very practical or cost effective. I'm sensing that texture is the rule rather than exception in parts of the country, though I can't see why, and can understand an assumption. I've never learned how to recreate texture, so I guess I can't leave the confines of the smooth walled region, whew!