It's not really the matter of buying but DLC complaints mostly stems from people getting fed up with all the fetish uniforms and swimsuits in general, that's why. People want more gender-equal DLC or less female-exclusive stuff but something with quality like casual/legacy and halloween costumes.
I'm a minimalist when it comes to DLCs anyways. There are very few DLCs I find usable.
If I complain it's usually because the pack is of low quality example would be the upcoming Nurse pack which is just 3 costumes swapped and recoloured for 10 girls.