Let's change the subject.
Like a lot of gamers, I dislike d4s probably most of all. There are three reasons for this:
1) Rolling them just isn't exciting. They plop on the table, rattle for a millisecond, and you have the result. This is problematic for dice, because the thing that makes rolling dice fun - the thing that makes it special - is the moment of suspense: the dice have left your hand and you are watching the graceful parabola of their movement and listening to the familiar clatter of their impact with the table, and your eyes flick to that spot at which you surmise they are about to stop, and you get this strange feeling of subconscious satisfaction at the way you can predict their motions although you are never quite sure exactly when and where they are going to come to a standstill...and there is a moment's pause as you wait for them to stop in which your brain considers a wealth of possibilities passing before it (win or lose, succeed or fail, live or die) and then the orgasmic climax of the number revealing itself. Although I usually only actually orgasm on a natural 20.
The d4 is the dice type that creates the least suspense because the time between release and result is too short. It's a quick, unskilled and disappointing lay. It blows its load too early and leaves you frustrated and a little bit displeased with yourself and what your life has come to.
2) They are not tactile. They are angular and feel not so much as discrete dice in their own right, but broken shards of bigger, better dice. All other dice types have a friendly, solid, almost avuncular feel. They are smiley, trusty comrades. d4s are harsh, cruel, nasty to the touch.
3) Even setting aside these considerations, the spread of results, and the maximum possible result, are both boring and anticlimactic. The difference between 1 and 4 almost makes you feel as if you may as well not have bothered rolling. And '4' is not an exciting number when other dice types give you 6, 8, 10, 12 or 20. That's a shallow way of looking at the d4, but an important one: even a good result is not very good.