Dave,
The wx5 has several ways to go, easy sax, sax with alt. fingerings, sax with a whole slew of tricks (my fav.), claranet, and flute.

The only thing I liked about the bari was the brain rattle, and the power. My favorite will always be the tenor. I will agree that there will probably never be anything that will replace the real thing, but the wx5 comes pretty close.

I'm gonna agree with you about the time that has to be spent on a sax. It is truly a love affair. The same goes for the wind midi. I have mine set up so close to the real thing sometimes I forget that I'm not playing a sax. They do , however, make a breath controller for keyboards. I don't know anyone that uses one, so I can't recomend.

Anyway time to go blow my brains out.
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kaboombahchuck