Hot & Cold Water Coolers or Dispensers price depends on a various factors.
Features & Details, Fancy Wanna-have
Hot water function, cold water function, child-lock for hot water are basic functionalities. Some machines are designed to produce sparkling water, some focus on chilled water, like the stainless steel Water Cooler type (like what we use in schools).
Other good to have and to some people, must haves, could include tepid or room temperature water options or multi temperature water, indications of water filter change, dual output for water faucet too, auto night light, motion sensor energy saving mode, ease of changing filters, auto sterilization, talking dispensers, you name it, they have it.