"but it wasn't so good for teaching programming because no home computer came with Logo, it was expensive"
1. My 8bit Amstrad CPC464 (1984) with disc drive came with LOGO [0]
2. I've used LOGO to teach programming (and C, Python, Java) and LOGO is easily the best (Scratch).
[0] https://www.cpcwiki.eu/index.php/System_Disk#CPC464_.28DDI-1...