As I mentioned in a different thread, some are looking at the non-XT wrong. Take someone like me, who doesn't have a big enough PSU for the 9070XT. Which card do I buy? If I go with the 9070XT, I need a new PSU, too, so that's another $50-100. Now all of a sudden, the 9070 is a considerably cheaper in-place upgrade. If you already have enough PSU, or you're doing a new build, then yes, the XT is the obvious choice.
That said, I do wonder how much the non-XT will overclock on the average. Even with 7000 series, near-3000MHz is pretty accessible on AMD GPUs. Also, looking at reviews, the 9070 is about 90% of the performance at 70-75% of the power consumption of the XT. It's also about 92% of the cost of the 9070 XT. It's probably all moot though, as we don't know what supply will look like, and AIBs are already going way past MSRP.