Cats can be persnickety, aloof and sometimes downright rude. It's a wonder they even allow us to pet them. They sure don't have a problem with feeding time. Many will actually use the Quality Cat Furniture that you buy for their personal use. On the other hand, some will ignore it completely, preferring people furnishings.
Some cats use their people's sofa as their perch and scratching area, which is totally unacceptable. Even after purchasing something like a cat condo, full of little nooks and crannies to slink through, they might look upon all of this with disdain. It might be a good idea to start with something smaller and less expensive, then build from there. Cat items are as varied as the cats that occupy them, from rustic looking tree houses to perches and apartments for their pleasure.
Once your kitties are used to the soft carpet-covered scratching posts and perches, they will casually hang about, watching you from above. Depending upon how large your configuration is, you may never see your cat often except for dinner time.
Another item for kitty you may consider purchasing for your kitty is a litter box. It is necessary when your feline lives indoors all or most of the time. There are some that are completely automatic and you never have to have pooper scooper duty.
Automatic scoopers are sold so that you do not have to handle the stinky stuff. It comes out bagged and ready for proper disposal.
All in all, keeping your kitten or cat happy at home can sometimes be costly if you go high end for your quality cat furniture. If, on the other hand, you slim down the budget, "Whiskers" will be as snug as a bug in a rug.