Just a guess, but I bet their suppliers have this policy. NewEgg might not be able to get their money back unless the monitor has that many dead pixels. Most vendors have the dead pixel policy. 8 does seem like a lot though.
Mike
EDIT: What size monitor were you looking for? The reason I ask is because I was at Office Depot today working on a printer when I noticed some SVA 15" LCD's on sale for $197.65 after MIR. Can't find it on the Office Depot site but
THIS is what they look like and
HERE is a link to salescircular.com which documents the deal.
I don' know anything about SVA but it had one of the nicest pictures I've seen on an LCD.
SVA site link