the 23" sammy looks to be back to normal price @ $279
These are a new breed of monitors that are focusing on the ability to be full HD, so only require 1080. It would be fine for multi tabling I think with a tiny bit of overlap, but a x1200 is definitely the best for poker. However, a solid x1200 monitor is very expensive -- This is the monitor I have and love (
link), but notice the price tag.
For a lot of people, they will deal with slight overlap (top and bottom, not side to side) for $150, or they'll just buy two or three and have a ton of screen real estate