For what it's worth, don't limit yourself to RTF airplanes. It's not hard to put together an ARF and I personally think that the things you learn about how it works make you a better and more confident pilot. You'll also be able to know you chose good equipment and got what you wanted to get.

So are you wanting a foam park flying to buzz around in circles in a big open space near your house and leave it at that, or are you wanting to get into nitro or bigger electric planes that perform better? The answer to that question is the biggest determining factor in what you should start with.