I get a lot more pleasure spotting deer through my binoculars and they are much nicer to use. I don't like the black and white display of the thermal but they are a useful tool for locating deer. You tend to see more than you can shoot...Being ancient I still don't posess one, too much money for the short period of life left.
Having said that I shot for years with iron sights 60+ years ago, made you stalk better. I have two young chaps help me one has a spotter the other doesn't, mind you he has eyes like a Sh..house rat. I don't like looking through the things so no thankyou, but try one and see what you think then start saving your pennies.