Newtonians reflectors offer the lowest cost per square inch of aperture size. In astronomy it is the size of the front diameter that will limit your observations more than all other factors. An equivalent 4.5" diameter in a refractor or Cassegrain will be 2-3x the price. Newtonians show the image of space upside down, which can be corected through the purchase of an optional erecting image prism if you desire to use your scope for terrestrial viewing as well as stargazing.
Light-gathering power 265x that of the human eye
Included moon filter reduces overabundance of light, better revealing surface topography
Finderscope assists in initial location of your object of interest
Equatorial mount (with slow motion controls) makes for easy extended tracking of objects
Included tripod adjusts from 2 to 4' in height