^True, I'm not big on the Ferengi episodes. Though I really enjoyed episodes like "The house Of Quark" and "Business As Usual"- ones that develop Quark as a character, not just use him as pure comic relief, surrounding him with characters that I found too silly for their own good.
When I watch DS9, I do it because the overall story arcs are riveting and have a greater impact on me emotionally than any otehr show I've ever seen. I wouldn't consider any of the antagonists on DS9 one-dimensional- the Jem'Hadar may be killing machines, but there's more than one episode that dares you not to feel compassion for them in some way. That's just one example. I'll pick an episode like that over one with tired, goofy, overplayed Ferengi "comedy" any day. Not even the first time did I think Ishka calling Zek "Lobe-kins" was anything but embarrassingly lame. Rarely did I find Rom's goofy overplayed idiot shtick amusing. I wouldn't call it contaminate for DS9, but it's surely one of my least favorite aspects of the show.