For Eastern whitetail hunting I think 8x is about perfect. I personally use a pair of Bushnell Legends 8x32s, and they have performed very well for a number of years. The smaller objective lens saves a bit on bulk and weight.
For hand-held use 10x is as high as is recommended. Above 10x it becomes difficult to hold them without noticeable hand shake.
For hunters out west who spend lots of time glassing, you may find the higher powers more desirable, but they will be using tripods or window mounts to hold them still. Good glass becomes a much higher priority when you spend lots of time looking through the lens.
For the use you described it sounds like you made a good choice.
XD-40 service, XD-9sc, member GeorgiaCarry.Org, National Rifle Association, Gun Owners of America, North American Hunting Club, Rocky Mountain Elk Foundation