RE: learning on Sim.
Ouch wow $900. Was that $200 for the Sim $300 for the plane, $100 for the flight box and various other stuff??
I'd HIGHLY suggest playing around on the sim. It does a pretty good job. I find the sim harder to fly that the real thing. I'd highly suggest getting with an instructor. When you are done flying in real life, you can always go home and practice on the sim.
I went from my Hobbico Superstar to an GP Extream 330 with the Sim as a training tool. I spent DAYS flying the sim before flying the real thing.