the finished product is not the goal -- the design is.
I deal with design a lot, its my current thing, and from what I gather being on a production floor with tons of electro-mechanical crap switching constantly is not how cool I can make it, its how isolated can I make it, cause the electrical noise floor is though the roof, just something to consider depending on your environment.
there's something to be said about KISS. Independent isolated devices that communicate though a robust situation, or a robust communications situation connected to a central device sounds more like a bullet proof design to me.
In a past life I was a network admin, so I get it, your whiz banging signals at 100+ mhz over silly twisted pair unshielded connections over hundreds of feet, or bouncing wifi off a steel poll to redirect it to a terminal in BFE, but there's a ton of overhead in order to do that (ie how many packets do you loose during a given time period, with sync clocks you cant loose 1 single bit)
not saying it cant be done, not saying you cant do it, just saying, one day this stack of domino's is not going to fall 100% perfect and you may not notice it until that data is needed, and when you do a failure analysis, its though the roof and you have to rethink things
what do you save for that future headache? a 0.5% tolerance 16 mhz ceramic resonator can handle 115200 baud just fine and cost 47 cents each, no other parts required, and it wont freak out if someone flips a light switch between point A and B