In my experience (and lucky timing) oriental rugs aren't beyond range of good wall to wall carpet, and FAR easier to liquidate, need be. Density of oriental rugs are far beyond very expensive carpeting, even types woven for high traffic areas like casinos and theaters.
I'm a fan of hardwood flooring and furniture of certain vintages. Individual rugs can be moved around, rolled up for cleaning, and lend a bit of Victorian appeal - never seeing the same thing twice. After all Chez' (or Haus) Frederic is 123 years old.