Would you care to elaborate on what you mean with concert fatigue? I've never heard of it and you're talking about it as though it's something that is so common, it is implied to be known.
Logistically, it is complicated to do that unless it is a small venue and you are an indie band.
It takes a lot of planning, contracts and advance payments to make a reasonably big show to happen. Larger venues are usually booked with months in advance, and most things you pay in advance are not refundable.
I think the whole point is that only Superstar Divas used to be able to operate like this.
Now, even "starving artists" are employing grey-area price-gouging techniques.
My anecdata is that concert fatigue is real.
I doubt this is going to bode well in the mid or long term.
My crystal ball doesn't work any better than anyone else's though...