I also buy used cabinets. Usually have to take them out yourself as homeowner has low skills. Least I dont take them out like the flip shows,,,with a sledge hammer. Those shows could sell most cabinets if they are box cabinets. Most of them I replace are 'peach crate' cabinets,,built in place from old peach crates.
My reno will get a set of repops finished pretty dark. IF I dont like the looks I will paint them to lighten up. I find older cabinets have better wood than particle board loaded new ones. If I didnt do used I would go unfinished from Mennards. They are solid oak fronts anyway.
Used ones are usually 3 to 500 bucks here and last set was huge. When I get all my cabinets in I will still have about half left over for and laundry garage storage. Box cabinets can be used in any configuration by changing where they screw together, where built in place has set layout which never works.
All home improvement stores have price for typical layout on a per running foot basis
Now have to figure out how to saw, buy and install granite