I've got a script which imports a bunch of hi-resolution models onto a grid. It gives me this:

It's currently got 35 objects (81924 vertices per object), but I'd like to rotate the camera toward the horizon, and arrange many many more objects out to infinity (~1500 of them).

I feel that a simple extension of what I'm doing now is going to run my machine out of memory. And since I only really need hi-res data close to the camera, it's a waste of resources out at the horizon.

What would be a good strategy for rendering many hi-res models in a single scene?