I've discovered the world of retro technology reviews on YouTube, send help already I'm thinking £250 to assemble your own component HiFi seems very reasonable.
I think the problem with getting things like Laserdisc to catch on is that, for whatever reason, society in the 1950s-2000s included a fervent audiophile minority who (somehow) had sufficient disposable income to invest in more and more advanced hi-fi equipment, but the corresponding videophile group was much smaller. Nobody obsessed over setting up a home cinema and watching movies at home with the best quality setup possible and so on, or rather few people. My dad did know someone with a Laserdisc player and discs, but he got it when a department store in Doncaster had realised they weren't selling and sold off the players and discs very cheaply. At the time it was very technologically impressive, but not in a way that made people actually want to buy it.
Incidentally, those Youtube videos led to me discussing with another mate of my dad's about how he'd bought a home 8-track player (which didn't really catch on in the UK) but kept taking it back to the shop because it always worked in the showroom, but never at home. This is it (albeit his is in better condition) and don't the aesthetics strike you as having coming back around with modern Bluetooth speakers?