I know exactly what you mean. Card just get quite boring after a while, especially since they are getting so expensive. I quit a couple months ago, and now into memoribilia. I have one card left (or at least one that is worth anything), and am trying to sell it to buy myself a Walter Payton Auto. I also just kept up with my Lions collection. Mainly full of base/inserts/RCs/#'d cards and a couple GU or Auto'd cards.
If you are interested in some memoribilia, I have some extra I may sell (Sayers Auto'd Jersey, Jim Brown auto'd jersey, and some more