[dschiptsov]

They should also try to find evidence of grapes is crappy wines to which a cork is too expensive.

[mrob]

Crappy wine is made from crappy grapes, or good grapes handled poorly, not fake grapes. There is no reason to use fake grapes because there is so much supply of real grapes (see "wine lake"). And most wine is not meant to be aged for a long time so there is no reason to use a cork and risk cork taint.

[robocat]

Better wine comes with a screw cap because there is no risk of corkage. New Zealand makes some fantastic "new-world" whites, and NZ doesn't use corks.

Crappy wine comes in a bladder or tetrapak.