Hezbollah's Rockets

Now I'm not an weapon expert, but something doesn't feel entirely fair when U.S. Defense Secretary Robert Gates says Hezbollah has more rockets and missiles than most governments. Is it really the number of missiles that counts, or the destruction power of these missiles (or other types of weapons that might be of more concern)?

Because I would assume that many of the governments that have fewer rockets and missiles than Hezbollah might have more advanced arms that could do far more damage than Hezbollah's missiles.

I'm not for Hezbollah having missiles, but just think the comparison is a little off.

It's a little bit like saying that Palestinians have more rocks than the Israeli Defense Force has guns. The facts are right, but it says nothing about the power relation between the two subjects.