The Outback is a perfectly good slalom boat Laz, we have one in our 3 - 4 boat rotation so I drive and ski behind one regularly. Fit and finish compared to the Supra equivalent is pretty plain jane but that doesn't affect how good a slalom boat it is. Bang-for-the-buck wise the Outback is probably the best slalom boat value on the market IMO. If you want fancy interiors, more bells and whistles etc you can get a Big 3 boat (or a Supra) for a LOT more money but you're right, you can't really justify the difference in price versus the (very small) difference in performance.
Ed