I can't say I've ever gotten really excited about many mascaras in my life. They don't tend to live up to their marketing and really, even a great mascara can have its faults. That's why I never spend more than $10 on a mascara, and not usually more than $7 or $8. Expensive mascaras just don't seem worth the price to me.
That said, drugstore brand Rimmel does make some very solid mascaras, especially Sexy Curves. I love the rubbery brush that isn't too full and grabs onto even the tiniest lashes. I'm a total spazz and I will get mascara all over my eyelid if the brush is too big. It does help your lashes curl, which makes your eyes look wider and more awake. I use one coat for a natural, everyday look or really glob it on if I want more volume.
Sexy Curves mascara is usually about $7 from Target, ULTA, etc.