It's not just the price that I love about Geico, it's their customer service. Allstate had the representative that was NEVER at his desk when I phoned. My State Farm premium went up every six months by about $20, just for fun, I suppose.
Geico ALWAYS answers my calls, lets me pay late sometimes without a single penalty (sometimes I forget), and lets me pay by phone WITHOUT PUTTING ME ON HOLD! If you like your insurance company, stay with them. But I have never paid more than $25 per month, no premium increases, and their service is fantastic! Can you tell I like them just a little?