Oh yeah!

I had a 1245 back in the 80's and yes, did a lot of programming. At least until I reached the border of approximately 1500 bytes / chars of Basic code. No room for commenting!
But learned to do 'condensed programming'.

Late I found a book about assembler commands for this processor and did a lot of Peek & Poke of hex values into the memory and made my if-else and other loops even way smaller. As well as finding out stepping through the memory that there was a bit more of memory reserved for arrays and other stuff and used that for my small machine code stuff.

Oh memories. But it somehow degraded and I do not have it anymore . Used a E-500 later for calculation stuff but even way more powerfulnit never came close the feeling of that 1245 (1403 was even better but no money at that times).
A friend of mine even had that attachable thermopaper printer and probably I still have some assembler printouts...

So pichlo, you have my vote!!!