If you spend a lot of time online or behind a computer for whatever reason. I always suggest curve and higher resolution so you'd pay at least 450 for one but it's the greatest addition to your home. Everybody that has stayed over my house and used the guest PC, always ask me that they need one after experiencing ultrawide curved. I'd say an entire battlestation but that'll run most folks 1K-3K
Get a NAS - a PC backup system, have your computer auto backup weekly. You'll thank me later.
My general conscience is pay more for quality, do less with materials. That over decoration or filled up rooms shyt is not it. Simple with high quality materials that'll last >>>
Be patience and buy piece by piece over a period of time
Find some black artist
Get some wall paintings, I like the divided car paintings -
Get some 3d printed art
Those dyson fans / heaters
Some proper LED's around the house entertainment center, proper lamps around if light source sucks
Some proper minimal speakers
I only put plants outside, not attracting bugs indoors
Get some bluetooth, wireless headphones in the living room changes the entire experience - you don't have to hear her talk throughout the movie
If you live on wood, get some rugs for here and there - get the finest comfortable - looks hard to clean rug
Keep storage like furniture to a minimal don't pile shyt all over it, keep your spot clean and minimal