Hi gigo
I fully subscribe to Simone's advice.
Adding my contribution....
11 years ago, when I also switched to digital for the same reasons, I tried several manufacturers (Kawai, Roland, Korg, Yamaha, Casio).
The Kawai (CA1200) that I chose immediately seemed leagues ahead of all the others in the aspects that interested me most: sampling and keyboard feel.
At the time, the CA1200 was Kawai's top model. But in the immediately "inferior" models, what diminished was the amplification, the cabinet finish... in short: to lose out even on things that really matter, you had to drop much lower in the model rankings (amplification is an important thing, but we are talking about an instrument that will often be played with headphones).
Don't worry too much about repairs.
Personally, I don't find that a digital piano (any brand or model) is a 'niche product'. But even if it were.
1) If it should have electronic problems, the nearest authorized center will handle it (I have never had one).
Funny note: for me living near Milan, the closest service center among those listed on the assistance sheet of my piano (a 2400 Euro object in 2003) is the same one listed on the assistance sheet of the Casio keyboard (three octaves, small keys, price 52 Euro) that I had given to my daughter.
2) If it should have mechanical problems (after three years, one key returned a bit slowly for me), any good technician expert in acoustic pianos will easily be able to handle it.
Watch out for one thing! (which is often overlooked) >>> The noise of the keyboard
When I had to choose mine, I didn't pay attention to it, but by trying to "play" on a piano that is turned off and without headphones, you realize what those who live with us hear in terms of the drumming of the keys hitting the bottom of the keyboard and returning to position.... fortunately, things went well for me: after the purchase, when I happened to test some digitals in some piano showrooms (even without turning them on), I noticed they were much noisier than mine.
Obviously, this point doesn't matter regarding disturbance to neighbors: only sounds pass through the walls between one real estate unit and another; noises this slight do not.
That being said...
if I found a digital piano that satisfies me in the things that matter most... I wouldn't reject it just because of the noise of the keyboard.
(I hope my family members never read this post )
Good choice!
and... a very, very warm greeting to your Pfeiffer