I've made dozens of knives on my Grizzly 1x30. You can buy 1x30 zirconia belts from Jantz and others, so that's not an issue. Even if you buy the regular belts, it's still a very inexpensive way to get started in knife making and it doesn't go through belts
that quickly, especially if you're forging to shape. Even with stock reduction knives it wasn't excessive IMO.
The Craftsman 2x42 is in your price range as well. I have one of these too... my complaint is the belt speed is too fast and the belt selection isn't as wide as for the 1x30 or the 2x72 grinders.
If I was just getting started, knowing what I know now, I'd still get the 1x30. It's slower going than the 2x grinders, but starting out that's a good thing