I also picked up an Olympus SZ3060 stereo microscope complete for $125.
Frankly, I don't miss a trinocular imaging port at all. I've managed to photograph everything I want to with a cobbled-together camera adapter I scrounged from spare parts.
Which leads me to the question: where is the photomicrography thread?
Here's an Argentine Ant worker. The 100X photo of her abdomen shows the eggs inside her. Even though they're unfertilized eggs, they can hatch into fully fertile male ants.