TrackIR really is one of those things that you get if you REALLY want it. I remember when I switched from hat switch views to TrackIR I was like "Woah! This is weird!" Going from something thats a foward view, left foward view, left view, etc. to something that lets you see everything in between made me a little dizzy at first, but I knew I wanted trackIR because I liked the realistic feel of being "in the cockpit". I was pretty bad at flying again at first since I wasn't used to flying with TrackIR yet, but after sticking to it for a while, getting the profile just the way I want it, and just practicing to look around with my head instead of a hat switch I got used to it and now I just can not fly at all without it (I've tried, I bailed 30 seconds into the flight I was so unhappy without trackIR).
For me, I think it took me a good 2-3 months of flying with TrackIR to finally get the hang of it, so it's not something you're going to plug in and suddenly your SA is going to become 10 times better.
It's just not for everyone. I've met people in game from both sides of the fence. Some love their hat switch/key pad, some love their TrackIR. Others have tried TrackIR and just didn't like it or couldn't get used to it, or stuck with it and learned to love it.