You are correct, the taxis are plentiful and cheap. For taxis go outside of arrivals and head left. For buses go outside and head right and across the first median. I'm sure almost everyone will take the taxi from the airport. I know when I was a tourist here the first few times I did as well.

But as I mentioned, this was not about cost as much as the fact that I've seen multiple comments, both here and on other sites, about people being afraid of taxi drivers ripping them off, taking the long way, etc. This was just providing an alternative option if you're uncomfortable with the taxis.