BTW, very often we think the next step up is a move to a more advanced airplane. It isn't.

It's when you learn the next level's maneuvers. Or improve your skills to that level.

Too often we think we just need an airplane that will do the things we want to do. It's a great excuse to buy another airplane, but it ain't how it works. Very often, that "better" airplane will do stuff easier, but is actually harder to fly safely. And very often, the airplane we already got will do what we expect to get for free with that next airplane.