Ahhh, Tradition

There are some cultures where it would be gauche to bring anything other than cash as a wedding gift. There are other cultures where it's just not done.

I'm still old-fashioned enough to believe that the couple should act as if the gifts are a surprise rather than something they've angled for.

Guests at an Israeli wedding hall can now insert a credit card into a
machine at its entrance, tap in a sum and leave a gift for the bride and
groom.

[...] She said couples pay 500 shekels ($155) to rent the device,
which resembles an automated teller machine, and the recorded funds are
transferred into their bank account the next day.

The machine [...]prints out a "deposit" slip with the guest's name,
which can be put into an envelope along with a congratulatory note and inserted
into a slot in the device for the couple to retrieve.

The wedding ceremony and reception are for the couple to declaim their vows in front of Creator, family and friends. It isn't a transaction to transfer funds despite the best efforts of some to make it so.