I think the three main issues are:
1) the aesthetic of clam-hoarding - some people just think it's a boring way to play the game.
2) the mechanism of clam-hoarding - does it promote success so well that it becomes a primary strategy (i.e. one that is seen as superior to most)? if so, is this actual (testable) or virtual (matter of perception only)?
3) the item itself - is it too cheap or too expensive, and if so, to what extent?
So I would poll along these three axes, with a space for further comment on each of the three. But I'm not going to, because it seems to take up more space than it's worth...
