The best musical purchase that I have ever made (and also the most expensive one) was Tyros 2. In fact, I will go as far to say that it is the best thing I have EVER bought in terms of hobby-related purchases!

If you asked my wife.... she'd agree! The reason is that T2 is the ONLY thing that is able to put to sleep our 7 month old baby. I play it every night and it works like magic! The only thing is I am not sure whether the baby falls asleep because the music is so beautiful and soothing or because I suck so badly that he'd rather fall asleep than listen to me ;-)