Tim,
Most keyboards can be taken out of the shipping carton and played with very little adjusting. And this is what most pros want they do not to put in time understand and then adjusting.
I feel it is not possible to enjoy all that a keyboard can do without spending time. By time I am talking about 6 months or more. You can generally master the keyboard well enough in 2 to 3 weeks to play but as you keep playing the keyboard and expand what you created a while ago it gets better and better. After working on my new my Kn7 for a week I used it on a job. 2 ½ years the same keyboard was 10x better. Better sounds, styles and registrations -- and a better way to utilize the operating system.
So the question --- “Which keyboard” to buy may not be the right one. “How much time am I willing give a new keyboard” may be closer to answering your question.
It is my opinion that a Yamaha keyboard is one of those that need help coming out of the carton. But ---- the keyboard offers many, many options that will allow the creative mind to create just about anything that it can come up with.
I hope this helps, and yes I am loving my new Tyros 3, (Smile) John C.