Did that with my Thoth. I always loved the artwork, but I could never read with it. I'd just stare at the images and not get anything (I read intuitively). I tried to sell it more than once here on AT, but no dice. Finally I figured if the universe would not let me sell it that there was a reason and I was meant to have it.
Then suddenly, for no logical reason, last month I was doing a reading and I felt deeply inside that I must use my Thoth. Even though I had had it a year and a half and it had never worked for me. Still I knew that was the deck I needed. For some reason it worked wonderfully that day, and I love it now.
I think part of the original reason it didn't work was that when I got the deck I had made the mistake (for me anyway it was a mistake) of reading the books I got with it. The traditional meanings they gave for the cards we so "depressing" for me that I think that got under my skin and I couldn't work with it.
Afterwards (last month) when I did one of my normal intuitive readings with it, it worked perfectly for me. No more books or studying with that deck for me. I should have known better anyway, as I am an intiuitive reader and that's how I get my best readings anyway.
Babs