A tape drive was a standard accessory for the Commodore 64. Almost all games were on tape.
The Amstrad CPC 464 had a tape drive integrated into the chassis (the 6128 used a 3" floppy - not 3" 1/4, a 3" disk).
In the UK and Ireland, in the late 80s, the majority of games software in computer shops was for these two platforms (much cheaper than a PC), with a handful floppy disk stuff for PCs. Consoles came in from the toy shop side rather than the computer shop side.
The Apple II was the more dominant 8-bit micro in the US. My impression is that most owners got a disk drive. Probably because the Apple II’s disk drive was a marvel of engineering, being both cheap and fast. Meanwhile, the C64 had a drive that was very expensive and very slow, and hence most Commodore owners would just use the included cassette player.
Perhaps it was similar with the Spectrum?
It also makes some sense that users in the East Bloc would have trouble affording expensive hardware.
The spectrum didn't have an official (**) floppy disk add-on, the official mass storage upgrade* was the microdrive, which was a 100kB tape loop format - an improvement on cassettes, but not by much.
As a result, there was a wide range of unofficial floppy disk addons, which then brought the issue that there were so many competing products that supporting them all was near impossible and hardly any commercial software bothered.
Post main-popularity, most people settled on the Beta Disc / Beta 128 from Technology Research as being the main unofficial standard, somewhat bolstered by it being adopted in eastern europe and russia, but during the main popularity period, even it had really poor market share in the UK.
* There was also the cartridges for the Interface 2, but that's a different beast entirely and they were even less common than the Interface 1 + microdrive.
** of course there was the Spectrum +3 near the end of the spectrum's life which had a built-in 3" amstrad drive, which saw reasonable commercial support, but it was long after the main portion of the spectrum's popularity, and at a time when the ST and Amiga were beginning to dominate.
Interestingly enough, the plot of the game being broadcast was (if I remember correctly) about smuggling a new computer from the west. It was loaded with puns at the system (e.g. one of the locations was a government building and you had to navigate through its loopholes).
You've never had the pleasure of twiddling the volume control on a tape deck for the 15th time trying to get exactly the right setting for your game to not die two minutes into loading :(
Back in the 80s, data storage on cassette was commonplace for 8-bit micros, because disk drives were expensive add-ons. I know I used them with my VIC-20 and TI-99/4A.
I had a TRS-80 Color Computer and struggled with a cassette tape interface that was faster than many competitors but wasn't reliable for me. The disc drive I added was more expensive than the computer but it was reliable and could support the OS/9 operating system
The Amstrad CPC 464 had a tape drive integrated into the chassis (the 6128 used a 3" floppy - not 3" 1/4, a 3" disk).
In the UK and Ireland, in the late 80s, the majority of games software in computer shops was for these two platforms (much cheaper than a PC), with a handful floppy disk stuff for PCs. Consoles came in from the toy shop side rather than the computer shop side.