The one deck I own that I guess I regret is the original Nigel Jackson Tarot.
Beautiful? Yes. Cardstock and finish? Awesome. Size? Just about perfect. So what's the problem?
This deck is the most conceited, pissy, self-absorbed deck I have ever come across. It's like the Anna Wintour of tarot decks.
I have, however, decided to keep it- in a beat up ziplock bag in a drawer separate from the rest of my decks. Every month or so, I take it out and work with it for a few days, and inevitably make the statement, "yep, you're still a bitch", and put it back in the drawer for another month.