I have a 30 year old Prima Sankyo Artist, as most of you know.

Anyway. Always figured it was simply me. Then a month ago one of my friends tried out a bunch of new flutes and asked me to sit in on her trial of them. After it was over (and she and our teacher picked the Haynes for her) I picked up a few of the other flutes and played them a bit. These were all brand new flutes, BTW. My friend was sitting on the floor cleaning the flutes while I played ... I picked up a flute at random and started a scale and went down to low C and, without trying at all, the note absolutely SANG out. My friend's head popped up and her mouth dropped open. MY mouth dropped open! I got out a piece of music and played through it and felt like the flute was almost playing itself. It was an Altus 907.
My first thought was that the new flutes are easier to play than the older models like mine. My teacher thinks that it is a "grass is always greener on the other side" kind of thing. The problem is that my Sankyo is equivalent to a modern Sankyo 401, which retails at around $9000 (altho of course my older model would not resell for nearly that amount of money). The Altus does not retail for that much, so would I, in essence, be going DOWN to change from the Sankyo to the Altus? I know that if I was a better player I could play any flute and make it sound great, so am not blaming my problems on the instrument. However, is it logical to think that a modern instrument could help more with my musical progression? Am I making sense at all?
Appreciate in advance any thoughts y'all would be willing to give me.