We have had a C3 Wagon Disklavier that we purchased second hand over 14 years ago. We added a DSR1 about 12 years ago connecting it to a laptop computer.
In that time we have never had a failure or a problem.
I have purchased Music Soft disks and convertered them to digital without difficulty.
I have collected thousands of playable midis from the interent,some of which are absolutely outstanding.
My wife plays piano, I am a midi mechanic.We have had choir proactice with midis in our home.
To date I have not seen a new variation of Disklavier that surpasses what a computer and a Disklavier can produce.
An outstanding instrument, wonderfully reliable electronics, tens of thousands of midis, and a community of supportive and active users.
Old TECH is good too! LOL.
DanO