How much content really is only on Sony’s store, and how much of it would wear you down if you didn’t consume it within X years?
There are truly painful boycotts (try boycotting the only ISP in your area), and boycotts that are an inconvenience. This one is a far cry from losing a luxury or getting worn out.
I mean, sure; it's much more painful to boycott the only ISP around, or the only grocery store within a 30 mile radius, but just because there are things that could be worse doesn't mean that this can't be bad.