I didn't think the
Racket CD would still be out there, but used copies are actually pretty cheap (new copies are priced like a collectable):
http://www.amazon.com/dp/B000008KVJ/?tag=imwan-20Considering only the tracks themselves and not how they're remixed or remastered, the new Omnivore release will have one recording you're missing, the cover of "Let's Live For Today". The Collectors' Choice CD contains the other tracks plus a bunch more.
All of the Sneakers recordings were remixed in the early '90s, and
Racket was compiled from those versions. The tracks on the
Nonsequitur Of Silence collection are also from those remixes. Omnivore's 2014 vinyl edition of Sneakers' debut EP was composed of remasters of the original 1976 mixes, and WAN assumes that the original mixes will also be used for this new expanded CD edition.
If you're a Stamey/Easter completist, get everything (this is what I do). If you're a purist, get only the new Omnivore. If you want the most Sneakers in one CD, get
Nonsequitur.