What increasingly expensive accordions sound like

Maybe it’s just me, or perhaps it’s the song itself, but I find that the inexpensive Czech Delicia accordion shown at the start sounds the best.

It might be the high-sounding reeds (which means its sound really travels) and my history as a busker that make me think that the Delicia’s sound is the one that most evokes “sidewalk cafe on a sunny spring afternoon” for me.