Woa cool, thanks for the tips. Yeah, looking for used professional tools sounds like the way to go. The tools will either be better from the start, or like you say, you can try mailing them back to see if they’ll throw you a bone on the original owner’s warranty.
What about non-power tools? I always end up buying Ryobi for power tools and Husky for non-power tools. Those seem to always be the cheapest options whenever I have to buy something.