That's a beautiful room, Dave!! If the rest of your house looked like that, it's no wonder it sold so fast.
Regarding staging, it really depends on what someone defines as "staging." De-cluttering, deep cleaning, and removing family photos can work wonders. Most people cannot visualize themselves living in a home when other people's stuff is in it. If a home is full of clutter, family pictures, etc. it throws them off and they can't see past it. A dirty house? Nasty carpet? Oh my goodness, that is the worst and can literally tank a sale.
For us, we go a bit further. We've sold 3 homes in the last 14 years and each time, we stripped the houses down to where they basically looked like model homes. Nothing on the counter tops (which is a huge pain but the look is impeccable), minimal decor, packed away unnecessary clothes in the closets, etc. Every person that went through our homes talked about how much they looked like model homes. All of our realtors have talked about the importance of giving people the feeling they are walking into a well-cared for home.
We've been blessed for certain in that we were able to sell so quickly. The first one never even got on the market before it sold. The second one sold the first day it was on the market. The 3rd one is the home we just sold and it was on the market for 60 days. But, we listed it in the midst of Covid-19 and it was a luxury home and sales of those are/were a little slower around here. Now, we're basically "homeless" and building a plan for the future as we face off against the disruption of life caused by Covid-19, and a country that seems to have gone off it's damned rocker in every aspect.
We sold our Washington house without any staging. The rooms were obvious for what they were intended to be, so we felt staging was unnecessary. The place was spotless, paint was fresh, hardwoods in excellent condition, carpeting was brand new. The buyers didn't have to do a thing to move in and live there. There was a reason it sold so quickly. Staging might have complicated things.
The one item we left behind that may have been "extra" were the cushions for the window seats in the upstairs media room over the garage. Those were brand new, ordered specifically to fit into that seating area. It was a $350 investment that I think made the room really stand out.
Dave