I was considering a Bushnell 4200 2.5-10x40 scope for my medium/big game rifle but after a suggestion from another post I'm contemplating the Bushnell 3200 3-9x40 instead. From what I can tell the only differnce between these scopes other than magnification (and field of view related to magnification) is that the 4200 has "fully multi-coated optics" and the 3200 has "multi-coated optics". Bushnell explains this to mean that the 4200 has multiple coatings on each side of each lens while the 3200 has multiple coatings on only the sides of the lenses exposed to oxygen....the exit pupil and objective. The sight says that the coatings enhance light gathering but how much is enough and how much is overkill? Has anyone used both a 4200 and a 3200 and seen significant differences in low light conditions?

Thanks in advance for the input.

P.S - the 3200 would save me 150 bucks...more money for target practice!