SQL Server - Dirty Reads Pros & Cons

Question

Why should I or shouldn\'t I use dirty reads:

set transaction isolation level read uncommitted

in SQL Server?

Answer 1

use it if you want the data back right away and it is not that important if it is right
do not use if if the data is important to be correct or if you are doing updates with it

Also take a look at snapshot isolation which has been introduced in sql server 2005