Yeah, I respect your prerogative, and even agree. I didn't purchase DLC in either Awakening or Fates, because I thought their storylines and worldbuilding were completely uninteresting, and failed to foster that yearning for more content -- especially grinding fluff.
With Shadows of Valentia, I'm already more intrigued by the storyline and world, so I can pretty much guarantee I'll buy DLC pack #3, but that's all I'm interested in.
Nintendo's DLC pricing for Fire Emblem is scummy, as I said, but at the end of the day I can't personally allow that to deprive me of the core game. Even though I was less than satisfied with Awakening and Fates as products compared to previous iterations of Fire Emblem, I don't want the series to die and lose any chance of redemption. It's one of the last SRPGs on the market, and I gotta support my favorite genre.