There are settings where magic item availability is supposed to be low. Birthright and Dark Sun for two, although in Dark Sun they are supposed to be "different" not necessarily not there - oh and "hidden" since wizardly magic is associated with defiling and in general "frowned on" if not outright "hated".
So in these type of settings there should be no easy way of getting magic items, unlike other setttings like FR, Greyhawk or Eberron (where it is a commercial enterprise by the way - magic is a commodity and part of way of life of most residents, especially in Sharn).
In Birthright there are supposed to be far fewer people capable of casting greater magic (and thus creating magic items) by setting design.
In Dark Sun they are supposed to be more reclusive and except for the elven markets (elves will pretty buy and sell anything they can get their hands on) they are underground and thus much more rare than would be in "other" settings.
IMO the term Magic Walmart refers to a "high magic item" world where it is relatively easy to find (and dispose of) magic items of most types. It can be unfortuneatly deragatory though.
So in these type of settings there should be no easy way of getting magic items, unlike other setttings like FR, Greyhawk or Eberron (where it is a commercial enterprise by the way - magic is a commodity and part of way of life of most residents, especially in Sharn).
In Birthright there are supposed to be far fewer people capable of casting greater magic (and thus creating magic items) by setting design.
In Dark Sun they are supposed to be more reclusive and except for the elven markets (elves will pretty buy and sell anything they can get their hands on) they are underground and thus much more rare than would be in "other" settings.
IMO the term Magic Walmart refers to a "high magic item" world where it is relatively easy to find (and dispose of) magic items of most types. It can be unfortuneatly deragatory though.