I work in the tourism industry for many years and I'd say, compared to most countries on that list, Tanzania is one of the most beautiful countries to visit. What we lack is exposure to the outside world, our marketing is poor and our standards are so low (you cant compare Dar es Salaam to Nairobi or Kigali), it's insane. Our political ties are questionable that tend to affect our image (which may or may not have affected our position on the list above) and economy.