Biggest question, what are you using it for?
For basic around the house stuff, the mid range and up B&D, Skill, and Ryobi stuff works well. Just keep in mind what they are, decent quality homeowner/light DIY grade tools. No need to spend 100+ to hang a few shelves and similar tasks on occasion. They fill that role well but wont hold up well for heavier use.
For contracting or heavy DIY, or just cause you feel mo powa is mo bettah, it's defiantly worth the step up. In that arena I'd go with DeWalt, Milwaukee, or Bosch.