Hey there. I am new to the sight,but here is my.o2. Keep the ones you have and save for a couple years and buy a pair of swaros or the leicas duovids which let you do both 10 or 15 power.I was fortunate enough to scrounge and buy the 15 swaros, and now I despise looking through anything else. Vortex are good optics also.I have had my 10 42s a few years but sent them back to get focusing fixed(free lifetime warranty). The only difference that I find between my 10-42 swaros and the Vortex is the amount of focusing I do. It was put to me this way....15-56 swaros=2000 bucks(when i bought them).20 years of hunting=100 dollars a year on the best glass out there(imho). Make sure you look thru them! My wife cant look thru mine(eyes too close). Happy Hunting!