From now one there will be a new tag that reflects a classification of the equipment, a few examples:
The Roland Jupiter family : Jupiter 8,6,4, MKS-80 and MPG-80.
The Yamaha CS family: CS-80, 70, 60, 50, 40, 30, 20, 10, 5, 1, not the CS1x.
The E-mu Proteus 2000 family: P2000, 2500, XL-7, Orbit 3, Vintage Pro, etc.
Hope it helps when analyse the prices.
Thank you for passing by.
P.S.- The title was taken from a E.L.O. song.