I thought a lot about this today, and here are the levels I've seen/heard of. More may exist, but this is just my own experience.
CAMPING INDOORS
1998-2007, I spent $100/room/move. This bought plastic or inflatable furniture, or a piece or two from Walmart or Target. Yes, I slept on an inflatable mattress for 2 years which doesn't sound like the aesthetic you're going for. I'm a renter, so I've never spent money on a kitchen or bathroom.
FRUGAL
2007-2017, I "started over" twice, and averaged $1,500/room/move. This encompassed furniture, reupholstering, refinishing, paint on walls (I did all the painting), rugs, bedding, curtains & rods, light fixtures hung by an electrician, etc. I had a solid plan for what I wanted it all to look like, then mixed a few pieces of high-end furniture with other pieces from Ikea and thrift-store finds. Don't forget: coupons! Sales! Cash-back websites & rewards credit cards! My husband and I got married during this span, and have one child with another on the way.
"MIDDLE CLASS"
Two families of 4 in our peer group are responsible, but way more spendy than us. I'm betting they chucked $3k-$6k/room. We've watched them furnish, and even RE-furnish their homes. One used a family member as a designer (free! but he bought a LOT of stuff), the other family bought everything at Room&Board exclusively.
CONSUMERIST SUCKAS
I read in Elle Decor or HouseBeautiful or something that your budget "should" be $10k/room. Hahahaha! This probably buys you the designer and a lot of custom, high-end pieces.
I spend the real dough on mattresses and couches, and a couple of high-end pieces that fit the design I'm going for. For instance, our master bedroom has 2 Room&Board stone and metal side tables (which we use as nightstands) that cost $1k for the set. They are beautiful, indestructible, and I love them. I topped them with matching lamps I found online for $150/ea. They sit next to the IKEA bed frame my husband brought to the marriage, a bookshelf I bought 10 years ago from Target for $70, a free chair from my mother's childhood bedroom set that I had reupholstered, and a free highboy from his mother that she repainted for him 15 years ago.
So that's how WE do it, YMMV.