I think disc brakes will be a benefit and worth buying. In 3 years when there is a standard and most people are running that standard, then I'll switch.

Interesting that the standard is a through axle. I thought they would've done something else to eliminate the ejection problem and still used QR (like changing the angle of the dropouts or something). Won't a through axle seriously slow down wheel changes? I had a through axle MTB and it wasn't exactly a quick thing to take the wheel in and out from what I remember.