Si non potes reperire Berolini in tabula, ludens essetis non WIF.
Hey, get your stinking cursor off my face! I got nukes, you know.
Probably because the 5. ed is considered the best.
Yes it is playable. Google Auatralian Design Group for details in each edition
Some prefer 5th edition yes, but WIF Final Edition (essentially, 6th edition) is the one most currently play. But 4th edition was good too.