@talk72000,
The size of a country or its population has little to do with any government's ability to ride out protests.
And the income level can be a double-edged sword. Usually a higher income level means more years of schooling; high scholarity and dictatorships don't match.
All this said, it's clear that Gaddaffi has a fans base, but I'm certain they are an obvious minority in the country. They will lose the incoming civil war (and let's hope it's a fast loss).