I just got RePro, Diva uses way too much CPU and I don't need effects, and just a few minutes going through the presets has me hooked. The envelopes are super-snappy, which gives the presets real punch, and it has a nice, aggressive tone to it that should suit our music perfectly.
If you could get the sale price everywhere, then there would be cause to worry but as it's an NI exclusive and running for such a short time, I don't think you should be reading anything into it.