Cheers for the comments guys. I thought it over and ordered the TrackHat Plus cap. It has what I need for the right price, and will hold me over till next generation VR. I've tried the Vive, and read tons about both of them, and bottom line for me is, I just don't think they're worth the money. If I had unlimited resources sure, but I don't.
As for EDTracker, that was my first choice until I realised that the TrackHat Plus had 3 big advantages.
1. Mounted in cap means I can use it either with headset or HT surround (I prefer HT surround but use both)
2. TrackHat has Z axis. I can lean in and out. EDTracker can't do that
3. And finally, it's wireless
So it became a no brainer for me. Not saying the other solutions are bad, just saying that I finally found the right solution for me. At least for a generation or two of VR.