Follow interesting bottles by adding them to your watchlist. The wacthlist is a list with bottles you are interested in. You can set notifications when a bottle on your watchlist is offered.
Screenshot of the watchlist
Tip: are you interested in a bottle that is currently not for sale? Add the bottle to your watchlist and set the notification. This way you can react fast when the bottle becomes available.
Below you see a video (in Dutch) how to add a bottle to your watchlist. Then, when the bottle becomes availalbe, it is purchased.