I wouldn't trash them.

Vinyl is still there (all coomments about it wearing out, warping, etc accepted). Most new "indie" music is brought out on vinyl as well as on CD and downloads. In fact it's normal for a new release to be issued on say, a limited edition 200 or 500 pressing vinyl which includes a download code in the album packaging.

So most youngsters I know have turntables as well as download players. My own vinyl collection is constantly being raided by my kids (19 to 25) and whenever I visit one of their flats I usually come back with a few records I've had to retrieve...only to see them disappear again a few weeks later!