I didn't. I fought it for a long, long time. But finally I realized that if I was going to REALLY learn, I was going to have to get an ugly ol' RWS and learn with it.
So then is when I learned the most about tarot. Once I did that, it's been wonderful from there. I still have the RWS deck, but I don't use it anymore.
I think, in all honesty, that something unpleasant in my childhood must have happened that I subconsciously associate with that kind of art work and that's why I find it so ugly. I can't be sure of that, though. It's just a guess.