I've got a similar setup. At some point I know I'm going to need to replace my AirPort(s) - actually, Time Capsules - but fortunately there is an easy solution to the "issue". Even though the devices have been discontinued by Apple, they still function just fine. I'm thinking that Apple will continue to provide software (security mostly) updates for quite some time yet.I'd like to throw this out there to get comments and suggestions. My home is wired ethernet with an Airport Express used in bridge mode to create a wireless access point for my iPad and iPhone. I also use the Airport Express to stream music from my iMac (via ethernet) to the audio out port on the Airport Express so it can feed my high-end stereo system.
Now that the Airport Express has been discontinued, I was hoping that someone in MacInTouch-land might offer a suggestion of how else I can get audio from my iMac to my stereo system (the inputs are RCA plugs) with the highest quality possible (this means no bluetooth, even if my audio system had bluetooth, which it does not).
Right now, everything is working fine, but sooner or later the Airport Express will die, so I'm just being proactive by looking for an alternative piece of technology. Thanks!
My plan, when I reach the point where I need to get a new main router for the house, is to simply keep one of the AirPorts connected to my network for streaming purposes, perhaps setting it up as a separate network, so I can easily identify and connect to it when setting up devices that I'll stream to.