I can also appreciate how it can be an acquired taste like fine wine, great scotch, and jazz (although I still haven't learned to appreciate jazz). However, once you understand that the early artists were not trying to produce a photograph, but were using size, spacing, location, gender, age, and color to express more than the simple reproduction of images the works permit the artist to speak to you across eons and they reveal their inner and most sincere thoughts. I find it hard to understand the crass financial appraisal that the ignorant and the haters see when discussing Church art. Perhaps it is because their version of Christianity is without beatitude and beauty (yes, there is a connection between those words).
But you must try and understand it isn't just the art itself...it's your history so understandable why the great meaning to you. The reformation changed much of the art work and from that period on I can much better appreciate the works...perhaps others as well. For myself, Natural law, I prefer a more simple taste in art...less glitz and glamor...and the same for the place which I choose to worship.
My field of work once took me to dressing some very influential people....some who like to wear their whole jewelry box, but as any fashion expert knows simple and tasteful works best. And that rather denotes many who might appretiate better the catholic art if they didn't wear so much of it nor hang up so much of it......but again..."it is in the eye of the beholder".