I had an A500 back then with 1MB and only the internal disk drive. Playing the Lucasfilm Adventures (Monkey I+II, Indy, ..) with that was very painful, and finally i saved up some money and bought a cheap external floppy. Waaaaaay better. Ever since i started using the external floppy, it was like a whole new world (especially since i could not afford a HDD)

I say pure win for *everything* is better than the single built-in drive. Kindwords spellcheck disk in the second drive.. made things easier. Not having to swap to disk 2 of Monkey Island 1 every time you opened a door (because the door sound was appearently on disk 2) - yay! Working with Basic and some example programs on a second floppy...
- G