Here's a mix of swanky floors and practical floors to show you exactly what I mean...
I've built 2 houses and both times I skimped on the floors. If I were to have a third chance, I'd definitely pay more attention to this area. I think it's a natural assumption that a fancy pattern is going to cost a ton more in labor. But think about it, if you had amazing floors there wouldn't be a need to buy a rug to cover them up, hence, saving you at least $300. There's your cost in labor!
Now, let's be practical. You're clearly not going to be replacing your floors often so it's important to keep your floors somewhat neutral. But, you can still go neutral while adding visual interest through pattern.
Enjoy your weekend!
(I'm 98% sure I'll have guest room photos for you next week!!)