It really doesn't matter what kind of box you bring into the house. Leave it on the floor for a few minutes and there's a good chance your cat will find it. They'll climb in, turn around a few times, and settle down like you put it there specifically for them.
The size of the box doesn't seem to matter much either. A nice roomy box is great, but apparently so is one that barely fits a single paw. Cats will somehow squeeze themselves into the tiniest spaces and look perfectly happy about it. You can see half the cat spilling over the sides, but they're staying put.
A good box can stick around for a while too. You tell yourself you'll throw it out after your cat gets bored of it, and then three weeks later it's still sitting in the middle of your living room. By then, they've slept in it enough times that getting rid of it feels a little mean.
Boxes are good for more than naps, though. Cats can hide in them, jump out at each other, chew on the edges, and poke their little heads through any holes they manage to find. Give them some packing paper inside and you've basically handed them an entire afternoon of entertainment.
Meanwhile, the actual thing that came in the box may have cost you plenty. Maybe it was even something for the cat. They don't care. The cardboard is right there, and they've already made their choice.
Cat pawrents know better than to immediately break down a good box at this point. You have to leave it out for inspection first and see whether your kitty approves.
If they climb inside, congratulations. That box belongs to them now.