DON"T DO IT !
the more people have telescopes, the more people get tempted into astrophotography.
The more people get into astrophotography, the more photons get captured.
The more photons get captured the less there is left over for ME to capture.
Don't be selfish, think of others, don't buy it, I need all the photons i can get!
Oh shucks...who am I kiddin'....go ahead and get the darn thing.
frank