Blank Blu-rays are still 17p each, which is quite a lot for ROM, and the only data which is available on them is films, which a lot of people netflix/pirate these days. Windows, Linux and OSX still manage to fit on a DVD, albeit needing to download a tonne of updates after installation, so the Blu-ray drive isn't particularly advantageous.
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
