As a counter-point, back around 2008, I purchased two Squeezebox music players from Logitech (digital music players that Logitech had acquired from Slim Devices: high quality DACs that supported every audio format, gap-less playback, synchronised playing on multiple devices, and were very configurable).
They discontinued these products four years later (2012) but kept their mysqueezebox.com online service running up until the start of this year (2024). They kept the user forums running and archived the knowledge-base wiki. Most importantly, they open-sourced the stand-alone server software for running a local Squeezebox server and continued to pay the main developer to maintain the project for more than a decade after they discontinued the products. He’s still the lead developer and project maintainer of the server software, now called Lyrion Music Server: https://lyrion.org/
Correction: the stand-alone server software was always open source, specifically GPLv2. In addition to the audio quality and features, that was one of the selling points for me. It being written in Perl, meant that it was both cross-platform and easy to run on a GNU/Linux system.