She doesn't use a drill a great deal, but 3-4 times a month would not be unusual. Sometimes drilling a few holes, sometime driving a few screws. She's a petite thing, and an 18v is too heavy and cumbersome for her. She also has small hands, so something with a thinner grip would probably fit her better.
I wanted to get a replacement with a decent charger and batteries. I'm thinking about the 12v Panasonic or perhaps the DeWalt. $90-130 range. A flashlight feature would be a plus.