I'd agree with that. The case size, open design, accesible FW, etc. made it really easy to add custom HW to the Apple ][, I got a lot of joy out of mine. I have to admit to being a bit jealous of the C64 and Atari kids with their better gaming capability.
> and yet had the cheapest floppy disk storage from 1978 onward.
OTOH, the time-critical hack that allowed it also made it nearly impossible for Apple to upgrade the II without breaking backwards compatibility. The only Apple II with a faster 6502 is the //c+, and that because it has the crazy Zip Chip acceleration logic on the motherboard.