I done Sql and data warehouse as a degree, so I know the basics but I don't have work experience in it, so I'm doing my Oracle and Microsoft certification in summer.... But your right Sql is so healthy right now even as a entry level position... Your looking at 30k to 45k calm doing simple querys... Once your in the database industry you should be looking at data warehousing that's when u get the serious bucks 60k upwards..
Don't sleep on Sql trust me.. But it will be hard understand the diagrams ERD etc
This time next year I should be doing databases