Solid brass hinges aren't going to be found cheaply. I have used the rolled brass hinges from Woodcraft, they work, they're not as nice as a Brusso (solid brass) hinge, but they work. I'll second what Roger said about the barrel hinges. They have become my favorite hinge for small box work, and the required chamfer on the back of the box acts as a stop to keep the lid open. Another idea is kerf barbed hinges. You need a special mini saw blade to install them, but if you are doing boxes often it's a good investment. They fit into a slot cut by the saw and have barbs that keep them from pulling out, only the hinge barrel is visible. You can find them at WC also.
HTH, Dave