You didn't say what you planned to use it for, but if it's hogs you really don't need a lot of pixels or manification. They are big targets and you can stalk in close In the dark if the wind is right. If its yodel dogs, fox, or bob cats you're after then you will want/ need more pixels and magnification Which means "MO MONEY"
Steer clear of ATN, I bought an ATN 10 years ago, didn't like it, took a big hit selling it even though barely used. A young man that worked for me in Border Patrol Laredo had one stolen by a porch pirate which was supposed to be sent "Sign for delivery" but UPS left it by the door. Took him two years to get a refund from ATN.
I'd stay with AGM or Bering Optics at their entry levels. Lots of dealers have demo models you can look through.
Oh Don't forget to budget in add a hand held spotter to your budget as well. I love my hand held pulsar but its over your scope budget. The AGM Tiapan is the best for a low budget.