I saved price for last because it won't matter if you buy the wrong tool
. I prefer to buy the highest quality tool I can afford. Manufacturers making professional-grade tools run more endurance tests, often offer longer-lasting batteries with shorter charging times, and focus on ergonomics for the user's comfort and safety. Ultimately, you want a product that feels good in your hand, is easy to use, and helps you do the best job possible around your old house, whatever that job may be.