At some point, won't it be cheaper to just bury it in a landfill away from any cities and drinking water? We can already afford to ship it to other countries, s

At some point, won't it be cheaper to just bury it in a landfill away from any cities and drinking water? We can already afford to ship it to other countries, so why not ship it to the desert where there's unlimited capacity and it will never harm the environment?