As I understand from posts on concertina.net a lot of the mid-price instruments use accordian reeds hence Dick's comment is on the mark (the same is true of some modern bandoneons and the post-war ELA Arnold ones).

I confess when my Lachenal 3-row was stolen I couldn't find a replacement I liked the sound of so blew all the insurance payment on a Gibson Mandolin (my cheap mando had also gone). Since then I've gone back to bandoneon with a 1939 Alfred Arnold which has that distinctive, non-accordian, reed sound.

I suspect that the upgrade will depend on the sound you want, if I went back to anglo I'd wince hard and pay the money for a vintage Lachenal again.

oggie