I believe contentment comes from the realization that musical satisfaction comes from YOURSELF, not your equipment...

The minute you rely primarily on your gear for contentment, you are destined to never find it for any length of time, as newer models constantly come out and cast doubt on your buying decisions... I mean, how could you POSSIBLY be content, when a better, newer arranger is available?

But concentrate on what YOU play, and not the machine, and you have a constantly growing, constantly different performance to be listening to. As long as you concentrate your efforts on MUSICAL growth, and not technical growth, you have an inexhaustible supply of contentment (or dissatisfaction but at least it's something cheap to fix!) that will reflect well on ANYTHING you play...