Check out the Deere Z530R, it’s really close to your price range. I bought it’s predecessor (Z540R) and have been mowing about 6-7 acres a week since I got it almost 6 years ago. I’ve abused that thing by hauling logs, clearing pasture, etc and it still runs and cuts like new. Used as it was designed, I can’t imagine that thing ever wearing out. You might also look at the Z545R as that‘s the same machine but has the EFI motor, but it’s also a lot more expensive. Depends on how much you hate carburetors