> I think you'll need MacOS 9.x to run the Classic environment under Mac OS X.
> At
> least you do now and I doubt that will change.

There's now way that you'd have to pay for MacOS9 _extra_, it will be
included with OSX's classic environment.

Re. MacOS9, it's very stable, etc., quite good in my opinion; whether it's
worth the investment is up to you, I didn't have to pay for the upgrade.

Henrik