Why Steinway pianos are so expensive

The first and only time I got to play on a Steinway was 13 years ago. It was during a high school recital, which the school held at a professional venue. It was nerve-wrecking and I cried after the performance over the mistakes I made, but at least I got to take the experience of playing Piazzolla's 'Libertango' (not me — these are pros) on a sonorous grand piano with me.
I don't play anymore, mostly because I'm not good and so I get self-conscious when I hear the sound of my own playing — although this story about amateurism has encouraged me to return to it someday, and perhaps, get a second chance on a Steinway.
What makes Steinway pianos so prized? It boils down to its craftsmanship. A Steinway piano takes about 11 months to finish, at their factories in either Astoria, Queens, or Hamburg, Germany. Much of the work still has to be done by hand to make sure the pianos meet their standards.
The piano manufacturer was started in 1853 in a Lower Manhattan loft by German immigrant Henry Engelhard Steinway. He and his family made square grand pianos, and their reputation kept growing, particularly through trade fairs. The first Steinway piano was reportedly sold for $500, about $20,000 today. The cost of its classic Model B grand piano is about $135,000 today, with cheaper and more expensive models available. It makes upright pianos, which are more affordable — still another $52,000 to part with — and its most expensive piano is worth $2.5 million.
Musicians like Billy Joel, Lang Lang, and Lady Gaga use Steinways. The late greats like Duke Ellington and Sergei Rachmaninoff as well. Concert halls buy Steinways to show they are a premier perfomance venue.
The 3D piano model is not a Steinway but a generic grand piano from Sketchfab. Flügel means grand piano in German. There were no free Steinway 3D models on the site.