noobie question what version do I need?

Why do I need to bother with SQL Standard or more?

I have an n-tier application where a webpage that is used by 10 people contacts SQL to perform selects, insertions etc.  Nothing fancy and the DB is will not grow beyond 5GB in the foreseeable future.

I can live with the CPU and RAM limitations

I do have SQL Enterprise available for other things like creating reports etc.

So why do I need more than SQL Express?

thanks.

melGibson