Samsung 2253BW is new model that just came how can be out of production. Older models are 226BW and 2232BW. Pricing wise 2253BW should be a bit cheaper but most dealers are selling the 3 at about the same price so they clear out the 2232bw and 226bw models.

Samsung 245B is available now for around 16xx but it doesnt have HDMI, but comes with 3 years warranty though.

HP lcd not for everyone, 1) its expensive, 2) the colours are a bit warmer unlike Acer/Samsung which gives a colder hue.
HP lcd has better build quality than Acer though but LCD isnt their focus market hence they dont have agreesive pricing on it. They are more focus on system sales.

W2207h is rm12xx