Fry's wraps their mono-line with geegaw displays as well (usually electronics consumer geegaws, but it could be adapted to candy and trashy magazines). A cynic

Fry's wraps their mono-line with geegaw displays as well (usually electronics consumer geegaws, but it could be adapted to candy and trashy magazines). A cynic might wonder if they might actually want to maximize wait time, but I imagine it is, as someone points out below, a question of space limitations (carts require lots of space to navigate a rope maze). I note that the self-service stations slowly taking over the mega-grocery stores here employ a mono-line protocol. But, I find these inconvenient unless I only get a small number of items, which, of course, would require me to make more frequent trips, nulling out any possible time savings). Grocery delivery would seem the only way out.