Some switches are made like that. On the used marked, there were Waters "Protax" switches that had all the connections out the back.
Probably the finest manual coax switch ever made is the Bird 74 family; they all have connectors out the back. New they are very expensive, but surplus they can be found for about $100 or so:
http://www.surplussales.com/switches/SWcoaxial.html