You stated that you wanted something that didn’t look like it was from the 90’s but then you started talking about speaker selectors. Those are 70’s. Any system that uses speaker selectors or VC’s is horribly out of date. For the most part systems are now touch panel based. Keypads can be helpful in secondary zones where all you need is On/Off/Vol, and as a combination light/shade/music keypad in main zones.
Don’t sell with your wallet. A Sonos system made up of Connect Amps will allow you to have a multi zone, multi source system that is scalable and able to be controlled from a phone/tablet with no additional processor. It can be done for $500 per zone +speakers and install. That is CHEAP.
Sonos has its drawbacks. It can’t officially be controlled using anything other then the Sonos app. Some companies (Extra Vegetables / C4) can control Sonos from their own system but it is not supported and Sonos can crush that any time they want. As others have mentioned the sound is just OK but it can be made better by just using a Connect and an outboard DA, Amp, and good speakers. Overall if you only need OK sound and are using it as a standalone system it is a good option. If you absolutely can’t get new wire in and have to use wireless then Sonos is the most popular option.