I know I'm going to get chastised for this, but...
Nowadays, the curve of diminishing marginal returns on scopes flattens out considerably above $500--*IF* we are talking just lens quality, consistency of adjustment and durability (I'll address the intangibles later). Sure, you are definitely getting a better product with a $1500 Leica scope, but definitely not five times better than a $300 one--not even twice as good.
Think about what you use a scope for, if you're a big-game US-based hunter (I assume you are, by the choice of rifle you say you want). After glassing and spotting the game, glassing it again to assess its shootability, raising the rifle to your eyes--the scope helps you aim at something you've already spotted and judged. A solid high-midrange scope like a Leupold will do this reliably the greatest majority of the time.
OK, OK, "but what about that X% of cases in which I'd have to pass up shots when it's almost too dark to hunt legally, but there's still (technically) a couple photons in the air?" Well, sometimes life is just a you-know-what--deer could have also shown up on the day I had the flu.
Mind you, I wouldn't say the same thing about a pair of binoculars: if you're a serious hunter, it makes sense to go with the absolute best optics you can afford--as long as we understand how to compare apples to apples: a 10x25 Leica will NOT be as "bright" in poor light as a 7x40 pair of honest binos costing a few hundred bucks.
On the other hand, I do admit that Leica has a powerful brand allure to which I am by no means immune--I own several Leica cameras, and am trying to justify buying a scope like the one you covet. There's something about that little red dot that screams European quality, excellence in optics and an almost cultish sense of belonging to an exclusive fraternity. If I could afford it, every piece of glass I use would be Leica or Swarovski.
For now, I console myself by shooting with good-quality but moderately priced scopes, and taking pictures of my trophies with my 1936 Leica iiia.
I say, if you have the cash go for it. You can always sell it, and it will lose very little value if you take care of it.