Not quite correct, but close...if you check around on the sites, there are quite a few pro musicians using Tyros2/3/4/5, including myself and several SZ members.

In fact, some pros and advanced players are using mid-line arrangers from various other brands as well as Yamaha.

Yes, Yamaha's sequencer and voice editing are not quite as extensive as some other brands, but many pros want something that not only sounds great out of the box, but has very strong factory and third party support.

Just because something is easy to use, and requires less fiddling with to make it sound great, doesn't automatically exclude it from being used by advanced and/or pro players.

The only area that Yamaha hadn't covered was the availability of a 76-note keyboard, and that has been corrected with the new Tyros5-76.

There was a time when professional players would turn their noses up at an arranger from any brand, but that has been changing quite a bit over the last decade or so.

Ian