Used Hero 3+ Black v/s new Hero+
I need help deciding what GoPro camera to keep. I got given a new GoPro Hero+ camera but had just bought from someone a 2-year-old used GoPro Hero 3+ Black camera. I know the Hero 3+ black is a bit better in terms of photo quality, etc. But I am not sure if this is more important than the fact that it has been used for 2 years (although it seems in perfect conditions, I could upload photos/videos in order for you guys to see if it is taking photos/videos as it should). Please let me know your opinions on this matter. Note that I dont want to open up the GoPro Hero+ because if I decide to sell it I can sell it for more money if it hasn't been opened.
Thanks for your help!