Some good points about the spacing, and certainly 7 level sounds like too much for the dynamic range, if you wanted 7 a lot should be clustered around the low end, as is evident by a minimum x2 change between levels. Moonshadow's suggested levels sound pretty much spot on.
Nice Nitecore is reading this, hopefully they are listening, and the Final specs will be revised.
As for Ra pricing, I will pay more for Ra/NovaTac because they have the best UI ever, their made in North America, they have great efficiency (especially Ra now), and generally I like them. I'm actually still waitinf to buy and Ra Clicky though (have Twisties), because the NovaTacs are so great that I'm happy to wait until they are a little closer to perfection. In the mean time though a <$60 LiteFlux LF2-XT also makes for one decent EDC, especially when something compact is called for.