If you keep an eye on the regular monthly sale flier, they will from time to time have Brown & Sharpe indicators on sale. Watch for those. Sometimes too, they will have "rebates" like a free set of carbide styli with the purchase of a B & S indicator or something of that nature. They're really nice with the carbide ball.
Enco also has similar deals on instruments. If you're not in a rush and don't mind waiting for the gizmo you want, check there too.