Earlier quoted context omitted.
Amstrad CPC owner here. We had a similar issue. Disk games were available but not as much as cassette games. Many cassette games were cracked and made into disk games, often with cheats available too.
Is the Amstrad cassette format digital or analog? Put another way, did you cry, groan, moan, and curse at failed loads as much as your Spectrum friends?
I also got a floppy drive (3 inch, instead of 5 1/4 or 3 1/2 inch again because Alan Sugar) after 12 months and it was a game changer in terms of productivity, but most of the games were still on cassette.