I used to be that way, then there was a holiday sale for my brand (one drill, one screwdriver with ratcheting). The big trick to batteries is storing them indoors. Yes, it's a bigger PITA, but I've been thoroughly converted. 3 years running and my batteries and tools are still going strong.

Don't get me wrong, I still buy corded for saws-all and stuff like that, but on drill/screw driver, battery works for 98% of all applications (hammer drilling cement being the rare exception).