The advantages of Hive/Hadoop comnpared to Data Warehouse

[Ashok Kumar]

 Gurus,
Some analysts keep asking me the advantages of having Hive tables when the star 
schema in Data Warehouse (DW) does the same.
For example if you have fact and dimensions table in DW and just import them 
into Hive via a say SQOOP, what are we going to gain.
I keep telling them storage economy and cheap disks, de-normalisation can be 
done further etc. However, they are not convinced :(
Any additional comments will help my case.
Thanks a lot