Thank for you all your replies on this subject!
I read them and I've been thinking hard about my next bird. Either way I have six months to continue to mull everything over.
In response to GlassOnion;
Especially since you'll be leaving for college soon and in the next 10 years or so your time will be tight I will recommend *against* getting another bird and instead ask yourself why it is you want another bird? Is it some sort of 'need' or 'want' that your current bird isn't satisfying? Put the energy, time and money into spoiling and training your current bird and working on developing your relationship.
I had to think about this one. I suppose it is something I should be thinking about carefully, and I appreciate your suggestion. When asking myself what my current bird wasn't satisfying though, I had to think. The answer is that there isn't any gap - I love my bird, and I'm certainly not bored with her. I'm always taming her and and training her (and spoiling her!) and I can see the results in our relationship.
The reason I want another bird is just because I want one. To enjoy it, have more fun, a friend for my bird (maybe). It would be amazing to have a bird like that in my life. I could argue that my life was still satisfying with my first bird too: so why did I have to get her? Why didn't I put my energy into other things? But having her in my life made it a lot more enjoyable, and I can barely imagine how awesome a new addition would be.
Of course I have to think about all the complications, but there's a little response, I hope, that would help you see my point of view.