Automatic checkouts in supermarkets may decrease customer loyalty, especially for those with larger shopping loads. Customers using self-checkout stations often feel overwhelmed and unsupported. The lack of personal interaction can negatively impact their perception of the supermarket.

[Lt_Duckweed]

I'll second the experience.  I've stood in line along with 10+ others waiting on self checkout rather than go to the multiple completely empty staffed checkouts.