I'm of the idea that microsoft auto-killed the surface rt in the exact moment in which they decided to release it at the same time of the surface pro.
Maybe, if they had let pass something like 1 year or 18 months between the two (without annuncing at all the surface pro in this time), more people would have tried the rt and it would have gained some momentum in the market.
The RT had months to sink or swim on its own and was already something nobody wanted by the time you could order a Pro.
The market confusion between the two is enormous, and it's not going in the direction Microsoft wanted: I routinely run into people who are under the impression that all tablets with Windows that they see are crippled ARM devices and not usable computers. If tablets running Windows are Microsoft's future they badly poisoned the well with RT.
