Your description of Eclipse hits the nail on the head. +1 For the comment on updating yourself into a corner. Eclipse plugins make it insanely easy to shoot yourself in the foot and get the IDE into an unusable state. Eclipse has an amazing variety of plugins, but sadly 99.9% of eclipse plugins give the other 0.1% a bad name.

From what I've seen many folks have started using IntelliJ due to the top-notch Scala plugin which Jetbrains provides for free.