half of the discraft models on your list have already been discontinued.
the downside of the ideas on this are that people generally list the slower discs, even though they are often better discs.
imo, there is much greater redundancy in newer models of discs than older, but there is a balance.
each disc's flight paths groups it into a similar category.
for example, i believe the sidewinder to be more closely related to the valkyrie in flight with a roadrunner more similar to a leopard, which would then differentiate them as a high speed understable low speed overstable disc vs. a high speed understable low speed neutral disc.
my problem is with how discs are discontinued. innova's process is more arbitrary while discraft's is based upon sales.
with newer, faster drivers coming out, the need for true fairway drivers will increase. i'm more concerned with discontinued models being brought back
if i get the time when i get back i will post my list of what i would discontinue