The U.S. could move boldly toward development of transformational accelerator R&D for high-energy physics. Profound questions remain to be answered in particle physics; recent discoveries reconfirm the value of continued investments. However, going beyond the present generation of high energy accelerators will require changing the capability-cost curve of accelerators, which can only happen through an aggressive, sustained, and imaginative R&D program aimed at building the future accelerators at a dramatically lower cost. A High Energy Physics Advisory Subpanel on Accelerator R&D recently studied the potential structure of such a research program. Both of us were members of that Subpanel; we participated fully in the process and approve the report. Nonetheless, our experience led us to continue and extend our analysis of the issues that will drive accelerator research aimed at future accelerators for high-energy physics with the aim of informing interested physicists from all disciplines, not just accelerator experts. Broadly, we will look at prospects for proton-proton colliders, electron-position colliders, and high intensity proton accelerators for neutrino sources – all interlaced with our biases and (and perhaps not politically correct) opinions.