What are the best strategies to purchase & maintain appliances?

[Brandt Tingen]

Question for the cost conscious (so everyone lol). What's the best way to buy appliances? Is it worth it to bargain hunt for used, or better to go retail and get a warranty? I am looking for a stack W/D for a Sec8 apartment.  Definitely does not have to be high end, but I don't want some clunker that'll be breaking down all the time.  What are some of the best strategies for buying, and then maintaining appliances like W/D, Fridge, Range, etc., etc. ?