I looked (again) at Smalltalk maybe 5 years ago, and concluded that it didn't offer enough over more recent and more familiar OO languages to warrant a switch.

I looked (again) at Smalltalk maybe 5 years ago, and concluded that it didn't offer enough over more recent and more familiar OO languages to warrant a switch. So I guess my answer is that it introduced nice ideas, then everybody else stole them, so you no longer need Smalltalk to use them.