I think the whole coalition-building system is completely screwed up and ultimately cheats the voters by putting the country at the mercy of these secondary single-issue parties. What Israel really needs is a two-party system like the US and not this multitude of single-issue-parties hefkerut (free-for-all) they're currently stuck with.
Having lived in both countries I see flaws in both electoral systems. How many Americans do you know who were not happy with the choices they had in recent Presidential elections?
There has to be a middle somewhere. I just don't know where that somewhere is.
The only promising sign here is the merger of small parties into larger ones, i.e.: Yisrael b'Aliya and Gesher into Likud and Am Echad and Meimad into Labor immediately come to mind. Perhaps we'll end up with a smaller number of parties and less insanity.
I would miss the election commercials for the Green Leaf Party. They are truly humorous.