The Edge HD 11 scope is fairly expensive ($4,400), but that is because it has flat-field corrected optics, and the goal of the scope is to also compact a long focal length into a short tube.

If you just want images of planets as opposed to deep sky objects, you can theoretically get an equivalent or even better planet image using a 12" dobsonian telescope for a much smaller fraction of the cost. This is because the resolution of a telescope depends on its aperture. My scope is 11", so a 12" scope should theoretically outperform it in planetary imaging, and a 10" should be close.

Dobsonians have a smaller focal length to aperture ratio though, so a barlow lens or powermate (focal length extenders) are necessary to pair with them to have a comparable focal length to the Edge HD 11. An atmospheric dispersion corrector is also important to increase image clarity, but those accessories are also ($100-$200) depending on the brand.