As some one mentioned before in the US it is pretty easy to do things like that. I have never been to FL so I do not know how large those airports that ickle black box mentioned however I flew a 172 into LAX 4 times VFR, with no problem. The longest wait was about 5 minutes which seems pretty reasonable! But they always seem to forget you not once but twice when you tried to get your clearance, I think they had to get the manual out, and remember how to give a VFR clearance!
Iain