How much is NIB Glock 17L worth?

I am buying a g17L, unfired NIB. It has the two factory mags and two 30rd hi cap mags as well. I am going to pay $800... am I getting ripped off? Please note that this gun was discontinued in 98 and its replacement 34 is selling for about 600 but has a shorter barrel, and well simply put - isnt a 17L.