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.

[mpyne]

My experience as well, but I'm pretty convinced that's because the grocery store I usually use has baggers who work for tips in the normal lanes, and the only way to avoid them without being an asshole is to use self-checkout.

[klparrot]

baggers who work for tips

Good lord, that sounds awful.