When I first discovered video connect they were $9.99
But I got mine on Ebay along with a heavy barrel and time soldiers board...I think...2 SNK rotary boards whatever they were. The whole auction was $35 or something and included 3 LS30's (one for parts, a bit bent up) and the 2 motherboards, a bezel, manuals.
That's when I started designing the first rotary interface.