The Clarks are classics, but they do get a premium for them. In Africa these days almost everyone wears the Bata version, which costs about $20 per pair, although you have to put up with the goofy "Safari" logo on the upper. Either is a wonderful warm-weather shoe if you don't need a lot of support.
In Zimbabwe and near parts you can buy locally made veldschoen, which use similar construction, for around $30. Here they're imported by Westley Richards and cost $200.