Yes, renovations have consequences, this is one of them. I just got done with a kit reno [same brushed nickel] and starting with pantry and moving on through the main floor replacing all knobs and hinges. Its really easy but more $.

Yes. You have to start somewhere.

If you want stained doors later, replace your doors later.

ETA: Don't restain those flat hollow core doors. It's just not worth the time. I they were solid, it would be one thing.

That's funny bc I have the same question in my mbath, is it realistic to paint one side of the door and leave the other side stained? I was going to post a question on Houszz but I didn't think it would get any response.

Yes, you can do that if you aren't ready to tackle the other side or think you might change out your doors. It's done all the time.

Hey thanks from both of us.

I wouldn't do knobs. I'd do levers. Levers look more upscale, are good for older people, and are great when your hands are full or wet and slippery.

Levers are not good, however, when you have small children.

They can open them at a much younger age (read: shorter) than knobs. MUCH younger. And child proofing those is difficult. Not good to have escapees!

Having some stained wood in your black/white/gray themed bathroom will add some warmth and will look sharp with white trim. So when you do replace your doors, no reason you can't use stained doors. I like fir doors, myself.