I would keep an eye out for used cabinet incubators (GQF Sportsmans are most popular, but Dickeys and Brinseas are great too). If you want new, consider a new Dickey, they are over $100 less than the Sportsmans for similar features/quality.
IDK of anything I could recommend in the 100 egg range. There may be some no-name imports with those capacities, but be careful about build quality. A well known brand of cabinet incubator holds it's value well, and even if you never sell it, it will pay for itself in pretty short order.