charter for this group states-buying/selling/trading is ALLOWED

here it is, direct from the charter for this group:

The purpose of alt.collecting.8-track-tapes is to provide a gathering
place for the widely scattered 8-track-tape collectors on the net. In
addition to serving as a focal point, this newsgroup will (1) facilitate
activities such as buying/selling/trading 8-track tapes and playback
equipment; (2) help collectors find new sources of tapes and players in
the face of an ever-dwindling supply; and (3) provide a place to
discusss 8-tracking in the 1990s, including recent 8-track releases by
independent record labels.. Finally, the newsgroup will be a forum for
the various philosophies engendered by the hobby (e.g., analog
vs. digital sound).