Don't buy on price. Buy from somewhere that has an excellent returns policy and customer service, search the internet for reports. This might be reflected in a slightly higher price. The dead pixel policy must be read in the terms and conditions.
I purchased a monitor 10 months ago. When arrived it the monitor screen had finger prints on it and about 5 dead pixels in the corner. The terms and conditions which I didn't read allow for 6. 10 months later it looks like it's faulty and after checking reports, they only refund 60% of the purchase price claiming usage of the product.