I don't mind
Aperture is good, especially for visual observing.
For photography, aperture is also good, but more aperture usually means a longer focal length.
For someone starting out in astrophotography, a longer focal length means the polar alignment has to be more accurate, and guiding is essential and has to be accurate too.
The faster focal ratio for astrophotography means you can use shorter exposures to capture the same amount of light/detail. An f/7.5 scope is better than an f/9 scope because you can get more detail in a 1 minute exposure (for example).
I hope that helps explain it.
Others will chip in i'm sure.