How much money is driven back into local communities I could not say, many do find employment in an otherwise economically drained country.
Being a small area on the border of Zambia and Botswana I dare to say they are able to obtain certain necessary amenities possibly not available locally.
One thing for certain, glaringly obvious is Zimbabwe is no longer the bread basket of Africa. Prime beef in 1964 was of superb quality along with many fresh vegetables and fruit. Noticeable difference in 2006 was lack of beef, in preference ordering warthog stew when dining out, knowing the meat was fresh.
Wow. Interesting. Thanks, @joanstewart. Here in Venezuela most touristic facilities are in ruin. The elite, as always keeps some jewels still working for them, but most resorts and other facilities, which used to provide amenities for the average folk, are out of business.
Have and have not, those that have don't bother with those who have nothing, sad reality. Those who have are normally the ones involved with demise of country through corruption, still baffling to think countries with so many resources are struggling to see the light of day @hlezama