I think it's hard to find deals on things people are familiar with: hand tools, power hand tools and 110v / 220v single phase stuff. If you go outside the realm of the comfortable, the deals are there. I see a lot of stuff coming from schools. Schools seem to have good 3 phase access and they spend money on nice tools. The price / quality ratio might still be worth it vs the price / quality you get with a plug and play single phase machine (if you don't have 3 ph power). 3 phase equip seems to always have higher quality per dollar spent than single phase.
And there are most definitely re-sellers in the industrial tool arena, but at this level you are either a very high end hobbyist or running a business. Example: https://www.advanced-machinery.com/o...nery-c33343931